WBBSE Solutions For Class 10 Geography And Environment Chapter 2 Atmosphere

WBBSE Chapter 2 Atmosphere Very Short  Question And Answers

Question 1. How far does the atmosphere extend above the earth’s surface?

Answer: About 10000 km.

Question 2. What is the height of the troposphere near the equator?

Answer: 18km.

Question 3. What is the height of the troposphere near the poles?

Answer: 8km.

Question 4. Which gas is concentrated in the topmost layer of the atmosphere?

Answer: Hydrogen.

Question 5. Which planet other than the earth has an atmosphere that supports life?

Answer: No planet.

Read and Learn Also WBBSE Solutions for Class 10 Geography and Environment

Question 6. Why does the atmosphere surround the earth?

Answer: Due to gravitational pull.

Question 7. How does pure air appear to be?

Answer: Devoid of colour, smell and taste.

Question 8. Name the topmost layer of the heterosphere.

Answer: Atomic hydrogen layer.

Question 9. What is necessary for the atmosphere to cause rainfall?

Answer: Presence of water vapor.

Question 10. Which is the most abundant gas in the atmosphere?
Answer: Nitrogen.
Question 11. Name two inert gases present in the atmosphere.
Answer: Argon and neon.
Question 12. Through which layer of the atmosphere do jet planes fly?

Answer: Stratosphere.

Question 13. Which layer of the atmosphere acts like an umbrella for the earth from solar radiation?

Answer: Ozone layer.

Question 14. Which gas causes rusting of iron?

Answer: Oxygen.

Question 15. How far does the mesosphere stretch above the earth’s surface?

Answer: 80km.

Question 16. In which layer of the atmosphere does temperature increase rapidly?

Answer: Thermosphere.

Question 17. Which layer of the atmosphere allows radio broadcasting?

Answer: Ionosphere.

Question 18. Name two gases that destroy the ozone layer.

Answer: Chlorofluorocarbons and nitric oxide.

Question 19. Which region of the earth is affected most due to ozone depletion?

Answer: Antarctica.

Question 20. What happens due to ozone depletion?

Answer: Global warming.

Question 21. What are the last limit of the atmosphere and outer space known as?

Answer: Magnetopause.

Question 22. Where is the density of the ozone layer the greatest?

Answer: At an altitude of 20-40km.

Question 23. In which layer of the atmosphere jet plane fly?

Answer: Stratosphere.

Question 24. Mow much solar radiation reaches the earth’s surface?
Answer: 1 part of 200 crore parts.

Question 25. What is the solar energy coming to the earth called?
Answer: Insolation.

Question 26. Which region experiences continuous days and nights for six months in a year?
Answer: Polar regions.

Question 27. What is the lapse rate of temperature?
Answer: 6.4°C for a 1000 m rise in altitude.

Question 28. Where does the temperature remain high
Answer: Equatorial region.

Question 29. Which slope of the mountains in the southern hemisphere remains warmer?
Answer: Northern slope.

Question 30. What is the albedo of the earth?
Answer: 34%.

Question 31. What is the average temperature of the Torrid zone?
Answer: 27°C

Question 32. What is the average temperature of the
Answer: 0°C.

Question 33. What is the average temperature of the surface of the sun?
Answer: About 6000°C.

Question 34. What type of climate is found in coastal regions?
Answer: Moderate or maritime climate.

Question 35. What is the boiling point of water on the Fahrenheit scale?
Answer: 212°F.

Question 36. What is the freezing point of water on the Fahrenheit scale?
Answer: 32° F.

Question 37. Mention the relation between Celsius and Fahrenheit scales.
Answer: 1°C = 33.8°F.

Question 38. Which greenhouse gas is emitted from wetlands?
Answer: Methane.

Question 39. Which greenhouse gases are emitted by air conditioners and refrigerators?
Answer: Chlorofluorocarbons (CFCs).

Question 40. What is the cause of an increase in rainfall in the hot temperate zone?
Answer: Global warming.

Question 41. What causes heavy rainfall in Peru and Ecuador?
Answer: El Nino.

Question 42. What are the lines joining places having equal pressure conditions called?
Answer: Isobars.

Question 43. Which latitudes are called horse latitudes?
Answer: 30°-35° latitudes in both the northern and southern hemispheres.

Question 44. What kind of pressure persists between 0° and 10° latitudes?
Answer: Low pressure.

Question 45. What kind of air pressure is found at the poles?
Answer: High pressure.

Question 46. What is the unit of measuring air pressure?
Answer: Millibar.

Question 47. Who invented the barometer?
Answer: Torricelli.

Question 48. When does the land breeze blow?
Answer: During the night.

Question 49. When does the sea breeze blow?
Answer: During the daytime.

Question 50. When do the southwest monsoon winds blow?
Answer: During summer.

Question 51. In which direction are the winds deflected in the southern hemisphere?
Answer: Towards the left.

Question 52. Which instrument measures wind direction?
Answer: Wind vane.

Question 53. Where is wind speed greater on the earth?
Answer: Between 40°S and 60°S latitudes.

Question 54. What kind of wind are monsoon winds?
Answer: Periodic wind.

Question 55. What kind of pressure condition is found to be associated with cold and dry winds?
Answer: High pressure.

Question 56 Name the planetary wind.
Answer: Trade winds, Westerlies, and Polar winds.

Question 57. Name a sudden wind.
Answer: Cyclone.

Question 58. Name a periodic wind.
Answer: Land breeze/Sea breeze/Monsoon winds.

Question 59. Name a local wind in India.
Answer: Nor’westers/Loo.

Question 60. Name a tropical cyclone.
Answer: Tornado.

Question 61. When was Ferrel’s Law invented?
Answer: 1855.

Question 62. When was the Buys Ballot’s Law invented?
Answer:1857.

Question 63. What is the other name of the westerly winds?
Answer: Trade winds.

Question 64. Where are most of the deserts of the earth found?
Answer: Tropical region.

Question 65. Why is a greater number of pressure cells developed in the northern hemisphere?
Answer: Due to the presence of landmasses.

Question 66. Name a modern instrument for measuring air pressure.
Answer: Barograph.

Question 67. Why is it difficult to boil food in the mountains?
Answer: Due to low-pressure conditions.

Question 68. Which force is created due to the rotation of the earth?
Answer: Coriolis force.

Question 69. Where does the dry wind called Harmattan blow?
Answer: Guinea coast of western Africa.

Question 70. When did people first come to know about the jet stream?
Answer: During the second world war.

Question 71. Name a wind blowing during the winter.
Answer: Sub-tropical westerly jet stream.

Question 72. What is the circular motion of water through the earth called?
Answer: The water cycle.

Question 73. How is water evaporated from plants?
Answer: Transpiration.

Question 74. What are the processes of evaporation and transpiration together called?
Answer: Evapotranspiration.

Question 75. What is water stored in the soil called?
Answer: Underground water or groundwater.

Question 76. What is the source of condensation and precipitation?
Answer: Water vapor in the atmosphere.

Question 77. What happens to the rate of evaporation if there is less water vapor in the atmosphere?
Answer: The rate of evaporation increases.

Question 78. What is the total water vapor present in a unit of air called?
Answer: Absolute humidity.

Question 79. How is absolute humidity expressed?
Answer: gm/kg.

Question 80. Which region of the world has the highest absolute humidity?
Answer: Equatorial.

Question 81. How is relative humidity expressed?
Answer: In percentage.

Question 82. What is the temperature at which atmospheric water vapor changes to water called?
Answer: Dew point.

Question 83. Give an example of condensation of air.
Answer: Formation of dew.

Question 84. What is the process of water or snow falling on the ground from the atmosphere called?
Answer: Precipitation.

Question 85. Mention one characteristic feature of monsoon winds.
Answer: Winds blow from opposite directions in summer and winter.

Question 86. Name a region facing a hot desert climate in India.
Answer: Thar desert in Rajasthan.

Question 87. Name a region that experiences a Tundra climate.
Answer: Greenland.

Question 88. Which hemisphere is represented if the temperature graph in a rainfall’ temperature map is concave?
Answer: Southern hemisphere.

Question 89. How much cloud cover is depicted by the symbol?
Answer: %th part or 25% of the sky.

Question 90. Which symbol is used to depict an overcast sky?
Answer:

WBBSE Solutions Class 10 geography and environment Exogenetic process and resultant black circle

 

 

 

 

Question 91. Why is cloud cover expressed in ‘okta’?
Answer: The sky is divided into 8 parts to calculate cloud cover.

Question 92. Which symbol is used to depict a clear sky?
Answer:

WBBSE Solutions Class 10 geography and environment Exogenetic process and resultant land forms white circle

Question 93. Which symbol is used to depict an overcast sky in the upper atmosphere?
Answer:

WBBSE Solutions Class 10 geography and environment Exogenetic process and resultant land forms three vertical lines circle

 

Question 94. How are high and low pressure of air determined?
Answer:

The normal air pressure at the mean sea level is 986 MB to 1013 MB. If air pressure is recorded as less than 986 MB, it is said to be low pressure. If the air pressure recorded is greater than 1013MB, it is said to be high pressure.

Question 95. How is the speed of wind determined? OR, What is an anemometer?
Answer:

The wind speed is recorded by an instrument known as an anemometer. Anemometer has a graduated dial fixed at its head. When the wind blows t e bowls move like the wheel of a turbine. The speed at which the pole rotates along with the bowls is recorded by the graduated dial at the base of the instrument.

Question 96. Name the instruments measuring air pressure.
Answer: Air pressure is measured with the help of Torricelli’s barometer, Fortin’s barometer, Aneroid barometer, Barograph, and other modern instruments.

Question 97. Why are monsoon winds called seasonal winds?
Answer:‘Monsoon7 comes from the Arabic word ‘Mousam7 meaning seasons. The winds blow from the southwest direction in the summer season and from the northeast direction in the winter.

As the characteristics of the winds change in different seasons, the winds are also called seasonal winds

Question 98. What do you mean by insolation?
Answer:

Insolation:

The incoming solar radiation is known as ‘insolation’. Only 1 part of 200 crore parts of the sun’s energy reaches the earth as insolation and heats up the earth’s surface and the atmosphere.

Question 99. What are isotherms?
Answer:

Isotherms:

The imaginary lines drawn on maps to join the places having the same temperatures are called isotherms

Question 100. What do you mean by a range of temperature?
Answer:

Range of temperature:

The difference between the highest and the lowest temperatures of a place over a certain period of time is known as the range of temperature. The difference in temperature for a day is known as the diurnal range of temperature, the difference for a month is known as the monthly range of temperature, and that for a year is known as the annual range of temperature.

Question 101. What are the units of measuring temperature?
Answer:

Temperature is measured mainly by two units—

  1. Degree Celsius (°C) and
  2. Degree Fahrenheit (°F).

Question 102. What is albedo?
Answer:

Albedo:

About 34% of the sun’s radiation is reflected back into space as long waves. These waves cannot heat the atmosphere or the earth’s surface. This is known as the albedo of the earth.

Question 103. What is effective radiation?
Answer:

Effective radiation:

About 34% of the sun’s radiation returns to space as the earth’s albedo. The rest 66% of solar energy heats up the atmosphere directly (19%) or by radiation of heat from the earth’s surface (47%). This energy that heats up the earth’s atmosphere is known as effective radiation.

Question 104. What is the ‘solar constant’?
Answer:

Solar constant:

The total amount of solar radiation received by a black body (a hypothetical perfect absorber and radiator of energy) on the earth’s surface through perpendicular rays per unit of time and per unit of area at a mean distance between the earth and the sun is known as the ‘solar constant’. It is about 1370 watts per sq. km.

Question 105. Which part of the earth is referred to as the Torrid zone?
Answer:

The region of the earth lies between 23½º and 66½º The average temperature of the earth is The average temperature of this zone is around 27°C. This zone does not undergo many climatic changes.

Question 106. Which part of the earth is known as the temperate zone?
Answer:

The region of the earth lying between 2334° and 6634° latitudes in both hemispheres is known as the temperate zone. The average temperature of this zone varies between 0° and 27°C. This zone can be further subdivided into a warm temperate zone and a cool temperate zone.

Question 107. Which part of the earth is known as the Frigid zone?
Answer:

The region of the earth extending between 6634° and 90° latitudes in both hemispheres is known as the Frigid zone. The average temperature of this zone is about 0°C. Like the equatorial region, this region also does not experience many climatic changes throughout the year.

Question 108. If the total average temperature of the month of may for Kolkata is 1078.6c, calculate the average monthly temperature.

Answer:

Average monthly temperature Total of the daily average temperature / No. of days in the month = 1078.6c /21 =34.79°C

Question 109. What is Six’s maximum and minimum thermometer?
Answer:

Six’s maximum and minimum thermometer

The Six’s maximum and the minimum thermometer is an instrument that measures the maximum and minimum temperature of a day. It also helps to calculate the average temperature and the diurnal range of temperature.

Question 110. By which processes is the atmosphere heated?
Answer:

The atmosphere is mainly heated by the processes of convection, conduction and radiation. Apart from these, it is also heated by advection, direct reflection of solar radiation, geothermal energy, the release of latent heat, vulcanism, etc.

Question 111. What do you mean by average temperature?
Answer:

Average temperature:

The sum of the highest and lowest temperatures of a place divided by two over a certain period of time is called average temperature. E.g.—If a place has the highest temperature of 30°C and the lowest of 16°C, the average temperature of the day is:

30°C + 16°C /2 = 46°C/2 = 23oC

Question 112. What is the heat equator?
Answer:

Heat equator:

  • The ‘heat equator’ or the ‘thermal equator’ is an imaginary line around the earth running across all the meridians and joining the places having the highest average temperature on each meridian.
  • This line more or less follows the 5°N latitude due to the presence of large landmasses and therefore greater summer heating.

Question 113. What is advection?
Answer:

Advection:

The lateral or horizontal motion of transfer of heat from warm to cool regions along the surface of the earth is known as advection. Eg- Heat is transferred from the warm equatorial region to the cold polar regions by the advection movement of the air.

Question 114. What are periodic winds? Give examples.
Answer:

Periodic winds

The winds generated over the earth in the atmosphere at certain fixed times of the year are called periodic winds. Examples- A land breeze, sea breeze, monsoon winds, etc.

Question 115. How can a temperature-rainfall diagram prove whether the area is in the northern or southern hemisphere?
Answer: If the temperature graph in the rainfall-temperature diagram appears to be convex, then the place is located in the northern hemisphere. If the curve appears concave, the place lies in the southern hemisphere.

Question 116. How can tundra climate be identified with the help of a rainfall temperature diagram?
Answer: In a rainfall-temperature diagram, if the temperature curve shows temperature below the freezing point for 8-9 months a year and the range of temperature is quite high, the climate thus indicated is a tundra climate.

Question 117. How can a hot-desert climate be identified with the help of a rainfall-temperature diagram?
Answer: In a rainfall-temperature diagram, if the temperature curve shows a huge difference between summer and winter conditions, and rainfall is very scanty and negligible, the climate thus indicated is a hot desert climate

Question 118. What is drizzle?
Answer:

Drizzle

Sometimes precipitation may occur in the form of very tiny droplets (<0.5 mm diameter) continuously from nimbostratus clouds. The droplets are so tiny that they seem to float in the air. This is called drizzle. Drizzles may occur often during the rainy season.

Question 119. What do you mean by super-saturated air?
Answer:

Super-saturated air?

If any special geographical area contains more water vapor in the air than is needed to make the air saturated at that particular temperature, the air is said to be supersaturated to understand the distribution of rainfall throughout the earth.

Question 120. Explain the process of radiation.
Answer:

Process of radiation:

The process of transfer of heat from one place to another without the help of any medium or without heating the medium present in between, is called radiation.

Eg- The earth’s surface radiates back solar energy through long waves and heats up the atmosphere. Radiation occurs faster in days of cloudless clear skies..

WBBSE Chapter 2 Atmosphere Write True And False

Question 1. The temperature of the stratosphere decreases with an increase in altitude.

Answer: False

Geography Class 10 Chapter 2 Question Answer WBBSE

Question 2. Refraction of sunlight in the atmosphere occurs due to the presence of dust particles.

Answer: True

Question 3. Nitrogen and oxygen form about 99.9% of the total volume of the atmosphere.

Answer: True

Question 4. The gases in the heterosphere are concentrated in the same ratio as each other.

Answer: False

Question 5. The upper limit of the mesosphere is known as mesopause.

Answer: True

Question 6. Methane is a greenhouse gas.

Answer: True

Question 7. Helium is an active gas in the atmosphere.

Answer: False

Question 8. The lower part of the thermosphere is called the ionosphere.

Answer: True

Question 9. The jet stream flows in the stratosphere.

Answer: False

Question10.The maximum concentration of ozone gas occurs in the troposphere.

Answer: False

Question 11. The atmosphere is a mechanical mixture of various gases.

Answer: True

Question 12. Although the amount of carbon dioxide present in the atmosphere is very low, it plays an important role in increasing atmospheric temperature.

Answer: True

Question 13. Huge quantities of dust particles are concentrated in the upper layers of the atmosphere.

Answer: False

Question 14. About 75% of the total mass of atmospheric gases is concentrated in the troposphere.

Answer: True

Question 15. In the troposphere, temperature increases with an increase in altitude.

Answer: False

Question 16. The main cause of the rise of temperature in the stratosphere is the presence of ozone gas.

Answer: True

Question 17. The stratosphere is also called the heterosphere due to the occurrence of storms and winds.

Answer: False

Question 18. The thickness of the ozone layer is measured by the Dobson unit.

Answer: True

Question 19. The boundary between the troposphere and the stratosphere in the earth’s atmosphere is called tropopause.

Answer: True

Question 20. The harmful ultraviolet rays of the sun are absorbed by nitrogen present in the atmosphere.

Answer: False

Question 21. Carbon dioxide plays a vital role in controlling the climate of a region.

Answer: True

Question 22. Meteors get burnt in the troposphere.

Answer: False

Question 23. The atmosphere remains bound to the earth by gravity.
Answer: True

Question 24.’Tropo’ means ‘temperature’.

Answer: False

Question 25. The ozone gas was named so by Schonbein.

Answer: True

Question 26. Ozone is a light blue-colored gas.

Answer: True

Question 27. The ozone layer is harmed due to the use of nitrogenous fertilizers in agricultural fields.

Answer: False

Question 28. Ozone gas plays a great influence on India.

Answer: False

Question 29. The use of body sprays and perfumes harms the ozone layer.

Answer: True

Question 30. Ozone is an isotope of oxygen.

Answer: False

Question 31. The presence of dust particles is maximum in the troposphere.

Answer: True

Question 32. The sea level rises by 10-12 cm with every 1°C rise in temperature of the earth.
Answer: True

Question 33. The maximum emission of greenhouse gases occurs from thermal power plants.
Answer: True

Question 34. The earth gets maximum heat from methane gas emissions.
Answer: False

Question 35. Nature plays an important role in global warming.
Answer: False

Question 36. The southern slopes of the mountains in the southern hemisphere receive more heat than the northern slopes.
Answer: False

Question 37. The atmosphere gets heated up by the short-wave radiation of heat from the earth’s surface.
Answer: False

Question 38. The air currents heat up the atmosphere through the process of transportation
Answer: False

Question 39. Climate does not change in equatorial and polar regions.
Answer: True

Question 40. La Nina is a warm ocean current.
Answer: True

Question 41. Water bodies get quickly heated up and cool faster than landmasses.
Answer: False

Question 42. Temperature is extreme in regions lacking vegetation.
Answer: True

Question 43. The average temperature of the Torrid zone is 27°C.
Answer: True

Question 44. Inversion of temperature occurs in mountain valleys.
Answer: True

Question 45. Summer persists throughout the year in the equatorial region.
Answer: True

Question 46. The maximum heat is received at about 2 O’clock in the noon.
Answer: True

Question 47. The length of solar waves is measured in microns.
Answer: False

Question 48. The atmosphere is a good conductor of heat.
Answer: False

Question 49. A decrease in temperature with an increase in altitude is called the lapse rate.
Answer: False

Question 50. The temperature of the surface of the sun is about 4000°C.
Answer: False

Question 51. Miimbnl enjoys maritime? climate due to Its coastal location.
Answer: True

Question 52. The boat actuator lies along the Tropic of Cancer.
Answer: False

Question 53. Global warming causes changes in agricultural patterns.
Answer: True

Question 54. Wind speed is less in higher altitudes.
Answer: False

Question 55. Wind speed is measured in knots.
Answer: True

Question 56. Westerlies are also known as anti-trade winds.
Answer: True

Question 57. Trade winds blow between 35° and 60° latitudes.
Answer: False

Question 58. The Westerlies blowing over 50°S latitude is known as Screeching Sixties.
Answer: False

Question 59. Pampero winds blow over the Pampas grasslands from the Andes mountains.
Answer: True

Question 60. Tropical cyclone generated near the islands of western India is known as hurricanes.
Answer: False

Question 61. The tropical cyclone generated over the southern part of the USA is called a tornado.
Answer: True

Question 62. The 10°S latitude is called the horse latitude due to highly speedy and noisy winds.
Answer: False

Question 63. Air pressure is high in summer and low in winter.
Answer: False

Question 64. Air temperature is inversely related to air pressure.
Answer: True

Question 65. The rotation of the earth causes low pressure near the Arctic and Antarctic Circles.
Answer: True

Question 66. The chance of storms increases if the isobars lie far from each other.
Answer: False

Question 67. Air rises upwards in the doldrum region of the equator.
Answer: True

Question 68. Friction reduces the speed of winds.
Answer: True

Question 69. Westerlies cause more rainfall during the summer season than the winter season.
Answer: False

Question 70. Khamsin is a hot local wind.
Answer: True

Question7 1 . The jet stream blows from the east to the west.
Answer: False

Question 72. Jet stream blows very close to the earth’s surface.
Answer: False

Question 73. The monsoon winds are related to jet streams.
Answer: True

Question 74. All cyclonic winds have eyes in the center.
Answer: False

Question 75. The tropical cyclone of Australia is known as Willy Willy.
Answer: True

Question 76. The local wind blowing over the Rhine valley is called Foehn.
Answer: True

Question 77. Loo is a periodic wind.
Answer: False

Question 78. Loo is a cool moist wind.
Answer: False

Question 79. Chinook is a periodic wind.
Answer: True

Question 80. The sea breeze blows during the daytime.
Answer: True

Question 81. The speed of the jet stream is 300-500 km/hr
Answer: False

Question 82. Foehn winds may lead to forest fires.
Answer: True

Question 83. Blizzards are common in Italy.
Answer: False

Question 84. Cyclones are known as ‘Taifu’ in the Philippines.
Answer: False

Question 85. A jet stream is a geostrophic wind.
Answer: True

Question 88. The easterly jet stream is responsible for the arrival of monsoon winds in India.
Answer: True

Question 89. The air pressure is measured with the help of Fortin’s Barometer.
Answer: True

Question 90. The drought conditions develop on the western coast of South America due to the influence of El Nino of the Pacific Ocean.
Answer: True

Question 91. Wind velocity is measured with the help of an Anemometer.
Answer: True

Question 92. Mistral is a warm local wind that blows over Rhone valley in France.
Answer: True

Question 93. Floods occur in India during the years of El Nino.
Answer: False

Question 94. The water cycle helps to maintain the balance of circulation of water in the earth.
Answer: True

Question 95. Temperature and rainfall are high throughout the year in a monsoon climate.
Answer: False

Question 96. Mediterranean climate is found on the Malabar coast of India.
Answer: False

Question 97. Monsoon winds blow over India and Bangladesh only.
Answer: False

Question 98. Two adjacent climatic regions are separated with a distinct line.
Answer: False

Question 99. Sometimes convectional rainfall occurs in winter in India.
Answer: False

Question 100. The distribution of water would have been hampered without the presence of the water cycle.
Answer: True

Question 101. The precipitation of ice crystals along with rainfall is called a hailstorm.
Answer: True

Question 102. In the equatorial region, rainfall occurs around 4 o’clock in the afternoon every day.
Answer: False

Question 103. A Steppe climate is prevalent in Perth in Australia.
Answer: False

Question 104. The temperature remains below the freezing point for 8-9 months in the Tundra region.
Answer: True

Question 105. Greenland enjoys a humid temperate climate.
Answer: False

Question 106. In the southern hemisphere, the temperature is high during December-January and low during May-June.
Answer: True

Question 107. China’s type of climate is not seen anywhere in the world except China.
Answer: False

Question 108. Changes in seasons are observed in the Equatorial region.
Answer: False

WBBSE Chapter 2 Atmosphere Fill In The Blanks

Question 1. The last limit of the troposphere is known as________________________

Answer: Tropopause

Question 2. The highest layer of the atmosphere is________________________

Answer: Magnetosphere

Question 3. The water vapor condenses on floating in the atmosphere to form clouds and fog________________________

Answer: Dust particles

Question 4. Aurora Borealis is seen in the region________________________

Answer: Arctic

Question 5. The troposphere extends up to km over the earth’s surface near the poles ________________________

Answer: 8km

Question 6. The lowest layer of the atmosphere is________________________

Answer: Troposphere

Question 7. By volume, the amount of argon gas present in the atmosphere is ________________________

Answer: 0.93

Question 8. Clouds, storms, thunders, etc. occur in the________________________

Answer: Troposphere

Question 9. Gases remain ionized in the________________________

Answer: Ionosphere

Question 10. In the troposphere, temperature with increases in altitude________________________

Answer: Decreases

Question 11. Jet planes fly through the________________________

Answer: Stratosphere

Question 12. The troposphere extends up to km over the equator________________________

Answer: 18 km

Question 13. The most abundant gas present in the atmosphere is________________________

Answer: Nitrogen

Question 14. Auroras are seen in the layer of the atmosphere________________________

Answer: Lonosphere

Question 15. present in the atmosphere help in the occurrence of rainfall________________________

Answer: Water vapor

Question 16. The word ‘tropo’ means________________________

Answer: Change

Question 17. The helium layer extends up to________________________

Answer: 3,500km

Question 18. About % of the total atmospheric mass is concentrated within 29km from the surface upward________________________

Answer: 97

Question 19. Is the magnetic shield of the earth ________________________

Answer: Magnetosphere

Question 20. the layer is the natural sun guard of the atmosphere ________________________

Answer: Ozone

Question 21. is formed by the mixing of dust and fog during winter in the industrial regions________________________

Answer: Smoke

Question 22. The total amount of water vapor present in one unit volume of air is known as _________ humidity.
Answer: Absolute

Question 23. Air is said to be _________ when relative humidity is 100%.
Answer: Saturated

Question 24. The type of precipitation in which ice crystals fall along with rainfall is known as _________ 
Answer: Hailstorm

Question 25. Water vapor _________ forms clouds.
Answer: Condenser

Question 26. This is the _________ driest season in India.
Answer: Winter

Question 27. Dew drops freeze to form _________ 
Answer: Frost

Question 28. The dew point is then _________ freezing point.
Answer: Higher

Question 29. The circular movement of water from the earth to the atmosphere and back is known as _________ 
Answer: Water cycle

Question 30. Water changes into vapor through the process of _________ 
Answer: Evaporation

Question 31. Air is called _________ if it contains high amounts of water vapor.
Answer: Humid

Question 32. In India, the air remains _________ in winter.
Answer: Day

Question 33. Condensation and precipitation occur due to the presence of _________ 
Answer: Water vapor

Question 34. Absolute humidity is represented by the unit of _________ 
Answer: Gm/cubic meter

Question 35. _________ climate has rainy summers and dry winters.
Answer: Monsoon

Question 36. The amount of water vapor present in the air depends upon _________ 
Answer: Temperature

Question 37. Smoke and fog together create _________ 
Answer: Smog

Question 38. The heating up of the earth’s surface and the atmosphere by solar energy is known as_____
Answer: Effective incoming radiation

Question 39. Sun’s rays fall almost vertically throughout the year on the_____
Answer: Equator

Question 40. The light arid heat energy coming from the sun to the earth’s surface Is called _____
Answer: Insolation

Question 41. The _____ location Is a major cause of the difference In atmospheric temperature.
Answer: Latitudinal altitudinal

Question 42. The 40″ latitude is _____ than the 30° latitude.
Answer: Cooler

Question 43. Reflection of sunlight is _____ on land than on the water.
Answer: Lesser

Question 44. The increase or decrease of temperature that is felt on the skin is called _____
Answer: Sensible heat

Question 45. In the upper atmosphere, water vapor gives out _____ hile condensation.
Answer: Latent heat

Question 46. The average temperature of the Torrid zone is _____
Answer: 27ºC

Question 47. The average temperature of the temperate zone varies between 0″ C and _____
Answer: 27ºC

Question 48. The average temperature of the Frigid zone _____
Answer: 0ºC

Question 49. The red soil remains _____ than alluvial soil during day time.
Answer: Warmer

Question 50. The difference in temperature between day and night is known as the _____ of temperature.
Answer: Diurnal range

Question 51. Solar energy is radiated by _____waves.
Answer: Short

Question 52. The annual range of temperature is greatest at the _____
Answer: Poles

Question 53. The imaginary lines joining places having the same temperatures are called _____
Answer: Isotherms

Question 54. The climate becomes _____ with increasing distance from the sea.
Answer: Extreme or continental

Question 56. An increase in temperature with an increase in altitude is known as_____
Answer: Inversion of temperature

Question 57. The climate of the places near the seashores is_____
Answer: Moderate or maritime

Question 58. The _____ thermometer helps to measure the average atmospheric temperature.
Answer: Six’s

Question 59. The temperature remains low during the day if the sky is _____
Answer: Cloudy

Question 60. The phenomenon of increasing temperature of the earth’s surface is called _____
Answer: Global warming

Question  61. The rise of the sea level is the result of _____
Answer: Melting of ice caps

Question 62. El Nino may cause _____ in India.
Answer: Drought

Question 66. According to NASA, about _____ % of polar ice is melting every decade.
Answer: 9

Question 67. Temperature increases with the increase of altitude in the atmosphere are called_____
Answer: inversion of temperature

Question 68. The calm region near the tropics is known as the _____
Answer: Horse latitudes

Question 69. If the isobars lie close to each other in a concentric pattern,_____ may occur.
Answer: Storms

Question 70. Air pressure _____ with a decrease in temperature.
Answer: Increases

Question 71. Wind speed _____ if the pressure gradient becomes steep.
Answer: Increases

Question 72. The Sirocco winds are known as_____ in Spain.
Answer: Leveche

Question 73. Coriolis force becomes _____ near the equator.
Answer: Zero

Question 74. The ITCZ lies along the _____
Answer: Equator

Question 75. The coastal regions experience _____ climate.
Answer: Moderate/ maritime

Question 76. The easterlies are also known as _____ winds.
Answer: Trade

Question 77. Typhoons originate in the _____ Sea.
Answer: South China

Question 78. The polar winds have very less humidity, hence pressure is _____
Answer: High

Question 79. The polar winds have very less humidity, hence pressure _____
Answer: Aneroid barometer

Question 80. The _____ is used to measure wind direction.
Answer: Wind vane

Question 81. The first instrument invented for measuring air pressure is _____
Answer: Torricelli’s

Question 82. A _____ scale is attached with Fortin’s barometer along with the main scale.
Answer: Vernier

Question 83. Air pressure _____ with an increase in altitude of mountainous regions.
Answer: Decreases

Question 84. The height of mountains can be measured by an _____
Answer: Altimeter

Question 85. Boiling of food occurs best at _____
Answer: Sea level

Question 86. 99% of the mass of the atmosphere lies within _____ km from the sea level.
Answer: 32 km

Question 87. The speedy wind blowing from the west in the upper atmosphere is called_____
Answer: Jet stream

Question 88. Mistral is a _____ wind.
Answer: Local

Question 89. The word ‘Chinook’ means _____
Answer: Snow eater

Question 90. The warm wind blowing over California in the winter season is called _____
Answer: Santa Ana

Question 91. The cyclonic winds have an _____ in the center.
Answer: Eye

Question 92. The jet stream blowing over India during the rainy season is known as the _____
Answer: Easterly jet

Question 93. The local wind blowing in the coastal areas of the Adriatic sea in winter is called the_____
Answer: Bora

WBBSE Chapter 2 Atmosphere Match The Columns

Question 1.

Left Column Right Column
1. Inversion of temperature A. Decrease in temperature
2. Increase in altitude B. Increase in temperature
3. Distance from the sea C. Katabatic winds
4. Urbanisation D. Controls rainfall
5. Forests E. Extreme climate

 

Answer: 1-C,2-A,3-E,4-B,5-D

Question 2.

Left Column Right Column
1. El Nino A. Rising sea level
2. Melting of polar ice caps B. Increase in temperature
3. Cloudiness C. Horizontal transfer of heat in the atmosphere
4. Advection D. Drought in India

 

Answer: 1-D,2-A,3-B,4-C

Question 3.

Left column  Right column 
1. Troposphere A. Reflection of radio
2. stratosphere B. Formation of clouds and rainfall
3. Thermosphere C. Meteros get burnt
4. Mesosphere D. Abors the ultraviolet rays
5. Lonosphere E. Gradual rise in temperature with altitude

 

Answer: 1-B,2-D,3-E,4-C,5-A

Question 4.
Left Column Right Column
1. Ozone gas A. Magnetosphere
2. Van Allen radiation belt B.Floating dust particles
3. Noctilucent clouds C. Exosphere
4. Aerosol D. Schonbein
5. Exobase E.  Mesosphere
Answer: 1-D,2-A,3-E,4-B,5-C

Question 5.

Left Column Right Column
1.  Equatorial climate A.  Seasonal rainfall
2.  Monsoon climate B. High temperature, low rainfall
3.  Mediterranean climate C. Snowfall instead of rainfall
4. Tundra climate D. Daily rainfall
5.  Desert climate E. Rainfall in winter

 

Answer: 1-D,2-A,3-E,4-C,5-B

Question 6.

Left Column Right Column
1.  Dew A. Precipitation
2.  Fog B.Smoke and fog
3. Smog C. Droplets of water floating in the sky
4. Clouds D. Condensation near the earth’s surface
5. Drizzle E. Droplets formed on     grass tips and leaves due to condensation of water vapor

 

Answer: 1-E,2-D,3-B,4-C,5-A

Question 7.

Left column  Right column 
1. Sirocco A. Egypt
2. Khamsin B. Sicily
3. Foehn C. Rhone valley
4. chinook D. Prairie region
5. mistral E. Rhine valley

Answer: 1-B,2-A,3-E,4-D,5-C

Question 8.

Left column  Right column 
1. Torricells barometer A. Measures height and air pressure
2. Fortin’s barometer B. vernier scale measures
3. Aneroid barometer C. Measures the speed of the wind
4. Anemometer D. Measures air pressure
5. Beaufort scale E. Wind speed

 

Answer: 1-D,2-B,3-EA,4-B,5-C

WBBSE Solutions for Class 10 Geography and Environment

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