WBBSE Chapter 1 Exogenetic Processes And Resultant Land Forms Very Short Question And Answers
Question 1. How far does the upper course of river Ganga lie?
Answer: Gomukh to Haridwar.
Question 2. On which course of the river depositional activities are the least?
Answer: Upper or mountainous course.
Question 3. What is the curved flowing path of a river called?
Answer: Meander.
Question 4. What is the depositional feature of a river looking like a fan called?
Answer: Alluvial fan.
Question 5. Name the type of lake which is formed by being cut off from the river in its middle course.
Answer: Oxbow lake.
Question 6. Name the place where the river meets the sea.
Answer: Estuary.
Question 7. What is the sediment carried by the river called?
Answer: Bedload.
Question 8. Name the process of erosion in which air bubbles trapped in small spaces implode to erode rocks.
Answer: Cavitation.
Question 9. Which is the world’s longest estuary?
Answer: Gulf of Ob (at the mouth of River Ob).
Read and Learn Also WBBSE Solutions for Class 10 Geography and Environment
Question 10. What are the exogenetic forces also known as?
Answer: Destructive forces.
Question 11. Which is the largest drainage basin in the world in terms of area?
Answer: Amazon drainage basin.
Question 12. What is the cause behind the gradual submergence of the islands of Ghoramara, Lohachara, etc.?
Answer: Rise in sea level.
Question 13. What is a river with all its courses well-defined called?
Answer: Ideal river.
Question 14. What are the valleys carved out by rivers called?
Answer: River valleys.
Question 15. Name two islands of the Sundarbans that are on the verge of submergence.
Answer: Suparibhanga and Kapasgadi.
Question 16. Who was the first to use the term grade’ in geology?
Answer: Geologist Gilbert.
Question 17. Who propounded the concept of gradation in geology?
Answer: Geologists Chamberlain and Salisbury.
Question 18. Name the main source of energy for the exogenetic processes.
Answer: Sun.
Question 19. What is the process of removal of weathered rocks to other places called?
Answer: Erosion.
Question 20. What is the process of lowering the height of landforms called?
Answer: Degradation.
Question 21. What is the process of falling loose materials like rocks and soil along the slope called?
Answer: Mass wasting.
Question 22. What kind of a process is gradation?
Answer: Exogenetic process.
Question 23. Which type of weathering is the most prominent in desert regions? Right Column
Answer: Mechanical weathering.
Question 24. What is the process of weathering, erosion, transportation and deposition together known as?
Answer: Denudation.
Question 25. Which island of Sundarban was completely submerged due to global warming?
Answer: New Moore
Question 26. What does a landform comprising several drumlins look like?
Answer: Basket of eggs topography.
Question 27. What kind of glacier is Siachen in India?
Answer: Mountain or valley glacier.
Question 28. Where are Roches moutonnees found in India?
Answer: Glaciated valleys of Kashmir.
Question 29. What kind of a peak is Mt. Makalu in Nepal?
Answer: Pyramidal peak.
Question 30. What is the debris brought down by glaciers called?
Answer: Moraines.
Question 31. Name the type of moraine formed due to depositions of sediments along the internal margins of two glaciers?
Answer: Medial moraine.
Question 32. What is the compaction of granular snow called?
Answer: Firn.
Question 33. Which shape do the sharp and pointed yardangs tend to look like?
Answer: Needle.
Question 34. Which is the largest desert in the world?
Answer: Sahara.
Question 35. What is the space between two seif dunes called?
Answer: Corridor.
Question 36. Where are the largest loess depositions found in the world?
Answer: Hwang Ho valley of China.
Question 37. What does the word ‘butte’ mean?
Answer: Hillocks or domes.
Question 38. Where is the work of winds predominant?
Answer: In desert regions and coastal regions.
Question 39. What are straight dunes also known as?
Answer: Seif dunes.
Question 40. Which is the deepest blowout in the world?
Answer: Qattara in Egypt.
Question 41. What do you mean by boulder clay?
Answer:
Boulder clay:
In a mountainous or valley glacier, the glacier brings a huge volume of debris along with the snow to the lower reaches. As the glaciers melts, this debris is deposited in various forms on the lowlands. The sand, clay and boulders deposited together are known as boulder clay.
Question 42. What are drumlins?
Answer:
Drumlins:
When the rocks, sand and clay brought down by the glaciers get deposited into dome-like features that look like inverted boats, they are called drumlins. An area covered with drumlins is also called a basket of eggs topography.
Question 43. What is an ice shelf?
Answer:
Ice shelf:
The thick layer of hard ice that remains attached to the land at one end and seems to float on the ocean like an extended shelf is known as an ice shelf. E.g.—Ross and Ronne-Filchner ice shelves of Antarctica.
Question 44. What is a kame?
Answer:
Kame:
At the edge or near retreating ice sheets the rocks, stones, pebbles, sand, clay etc., brought down by the glacier accumulate in dumps like triangular deltas. These are known as kames.
Question 45. What is a durian?
Answer:
Durian:
In a desert region, due to changes in the direction of winds, the sand dunes shift from one place to the other. These moving or shifting dunes are called ‘durians’ in the desert region of Rajasthan.
Question 45. What is a hammada?
Answer:
Hammada:
Hard rocky sand-free surface in a desert is known as a hammada. It is formed when the sand has been blown away by winds.
Question 46. Where are sand dunes found?
Answer:
Sand dunes are found in regions that have huge accumulations of sand, some thorny bushes acting as obstructions and vast open lands. Such conditions are found in hot dry desert regions and coastal regions.
Question 47. What is degradation?
Answer:
Degradation:
The process of lowering the height of a landform by different exogenetic forces is known as degradation. It is a destructive force. Weathering, mass wasting and erosion are the processes that cause degradation.
Question 48. What are rapids?
Answer:
Rapids:
Waterfalls of smaller dimensions are known as rapids. They are usually found upstream from the main falls or are even found independently. For example—Rapids are seen in the mountainous course of many Himalayan rivers.
Question 49. What are continental glaciers? Give examples.
Answer:
Continental glaciers:
When the extensive areas of the continent remain covered with snow, irrespective of high or low altitude, they are known as continental glaciers. Example—The snow cover of Greenland and Antarctica is called continental glaciers.
Question 50. What are end moraines?
Answer:
End moraines:
Terminal or end moraines are depositions of glacial till due to the ablation of ice brought down by the glaciers. These moraines are deposited at the snouts. They are horseshoe-shaped and have concave slopes.
WBBSE Chapter 1 Exogenetic Processes And Resultant Land Forms True And False
Question 1. The main work of the river in its mountainous course is erosion.
Answer: True
Question 2. The work of the river starts above the snowline.
Answer: False
Question 3. Colca Canyon formed by the river Colca is one of the deepest in the world.
Answer: True
Question 4. Potholes are created in the river beds due to abrasion and attrition.
Answer: True
Question 5. The sea level is the last limit of erosion.
Answer: True
Question 6. The Grand Canyon lies in the course of the river Colorado.
Answer: True
Question 7. The rate of side cutting is more than the rate of downcutting in the gorges and canyons.
Answer: False
Question 8. Natural levees are created on the banks of the rivers only in the lower course.
Answer: False
Question 9. The largest river island in India is Majuli.
Answer: True
Question 10. Gorges are seen in dry regions and canyons are seen in moist tropical regions.
Answer: False
Question 11. The scientific study of the river is known as Potamology.
Answer: True
Question 12. The river Ganga is an example of an ideal river.
Answer: True
Question 13. Rapids are larger in dimension than cascades.
Answer: False
Question 14. The waterfalls gradually recede towards the source of the river.
Answer: True
Question 15. Waterfalls are mostly formed at the knick points of the rivers.
Answer: True
Question 16. Oxbow lakes are seen in the upper course of a river.
Answer: False
Question 17. Flood plains are a common depositional feature beside most of the large rivers of the world.
Answer: True
Question 18. The islands of Sundarbans are gradually submerging.
Answer: True
Question 19. Canyons are U-shaped valleys.
Answer: False
Question 20. Alluvial cones in the course of the river Ganga are formed from sediment deposits brought down by the river near Haridwar.
Answer: True
Question 21. The oxbow lakes are known as ‘tal’ in Uttar Pradesh.
Answer: True
Question 22. The Suparibhanga island of the Sundarbans is subjected to gradual submergence.
Answer: True
Question 23. The deltaic flow of river Ganga extends from Haridwar to its mouth at the Bay of Bengal.
Answer: False
Question 24. Plucking is solely a process and mechanism of fluvial erosion.
Answer: False
Question 25. The process of degradation increases the height of the landforms.
Answer: False
Question 26. Potholes are formed at the base of the waterfall.
Answer: False
Question 27. The confluence of the Alakananda and Bhagirathi rivers is at Devprayag.
Answer: True
Question 28. Floating blocks of ice found in oceans are called icebergs.
Answer: True
Question 29. The Malaspina glacier of Alaska is an example of a piedmont glacier.
Answer: True
Question 30. Nunataks are seen in polar regions.
Answer: True
Question 31. The lakes formed in the depressions found in the glacial stairways are called paternoster lakes.
Answer: True
Question 32. The submerged glacial valleys formed due to erosion by continental or mountain glaciers are called fjords.
Answer: True
Question 33. The region clustered with drumlins is also called ‘basket of eggs topography’.
Answer: True
Question 34. Clay containing many large stones and boulders formed by the deposition of debris from melting glaciers and ice sheets is called boulder clay.
Answer: True
Question 35. Ice deposits are found above the snowline only in winter.
Answer: False
Question 36. Waterfalls are formed from the meltwater of hanging valleys after deglaciation.
Answer: True
Question 37. The altitude of the snowline varies with latitude.
Answer: True
Question 38. Erg is an area of a large accumulation of sand, formerly piled up with alluvium.
Answer: True
Question 39. Oases are created due to the abrasion of wind.
Answer: False
Question 40. Barchans are a special type of transverse dunes.
Answer: True
Question 41. The pediment is a type of plain.
Answer: True
Question 42. The lakes found in desert topography are called playas.
Answer: True
Question 43. The leeward slope of the ventifact is smooth and sharp.
Answer: False
Question 44. The dreikanter has all three sides eroded and polished.
Answer: True
Question 45. The large hollow or depression created in the Sahara desert due to the blowing away of sand is known as Qattara.
Answer: True
Question 46. Inselbergs are erosional landforms of glaciers.
Answer: False
Question 47. Interlocking spurs are formed due to wind erosion.
Answer: False
Question 48. The crescent sand dunes are known as seif dunes.
Answer: False
Question 49. The landforms looking like mushrooms found in deserts are called yardangs.
Answer: False
Question 50. The shifting dunes are called barchans.
Answer: False
Question 51. The saltwater lakes of deserts are called wadis.
Answer: False
Question 52. The Taklamakan desert lies in China.
Answer: True
Question 53.’Mesa’ means ‘chair’ in Spanish.
Answer: False
Question 54. Seif dunes are formed parallel to the direction of the wind.
Answer: True
WBBSE Chapter 1 Exogenetic Processes And Resultant Land Forms Fill In The Blanks
Question 1. A fault lying across the river in a mountainous region gives rise to a_______
Answer: Waterfall
Question 2. _______ Are created due to erosion by rivers in the mountainous or upper course.
Answer: Gerges/Canyons
Question 3. In the upper course of a river, downcutting of valleys mainly occurs due to_______
Answer: Abrasion
Question 4. Cliffs present in the course of a river form large waterfalls called_______
Answer: Cataracts
Question 5. The longest river in the world is a river _______
Answer: Nile
Question 6. The largest river in the world in terms of volume of water is a river _______
Answer: Amazon
Question 7. The islands of New Moore and Ghoramara have submerged due to _______
Answer: Rise in the sea level
Question 8. An example of an endogenetic process of landform formation is _______
Answer: Plate Movement
Question 9. Erosion by rivers and glaciers is a _______ process of creating landforms.
Answer: Exogenetic
Question 10. Two important works in exogenetic processes are erosion and _______
Answer: Deposition
Question 11. The river erodes least in the _______ course.
Answer: Lower
Question 12. The upper course of the river Ganga extends from Gomukh to _______
Answer: Haridwar
Question 13. The Livingstone waterfalls lie on the river _______
Answer: Congo
Question 14. The Victoria waterfalls of Africa are an example of a _______
Answer: Cataract
Question 15. The fertile region in between two rivers is called a _______
Answer: Doab
Question 16. The huge depressions created at the base of a waterfall are called _______
Answer: Plunge pools
Question 17. The term meander came from the river _______
Answer: Buyuk Meanderes
Question 18. The delta formed by the river Seine is a _______ delta.
Answer: Estuarine
Question 19. The rate of flow of water in a river per cubic metre per second is measured by the unit _______
Answer: Cumec
Question 20. Holes formed by abrasion on the riverbed are called _______
Answer: Pot Holes
Question 21. According to the name of _______ the river, the zigzag course of a river is known as a meander.
Answer: Meanders
Question 22. The process of modifying landforms by the combined action of erosion and weathering is called _______
Answer: Denudation
Question 23. Eskers are depositions of glacial debris comprising sand and gravel looking like low______________
Answer: Ridges
Question 24. The longest glacier in the world is Antarctica____________
Answer: Lambert
Question 25. One of the largest valley glaciers in the world is___________
Answer: Bread more
Question 26. The largest glacier in India is___________
Answer: Saichen
Question 27. A glacier is a slow-moving mass of ice formed on the mountains or near the poles due to the accumulation of snow______
Answer: River
Question 28. Fjords are seen in the latitudes of the coastal regions _______________
Answer: Higher
Question 29. The tongue-like extension of the glacier is known as the___________
Answer: Snout
Question 30. U-shaped glacial valleys are also called__________
Answer: Glacial troughs
Question 31. The snow-less peaks in an ice-covered region are called___________
Answer: Nunataks
Question 32. Aretes are formed by the process of ____________
Answer: Abrasion
Question 33. Loess comes from a German word meaning
Answer: Loose materials
Question 34. In desert regions, the presence of rocks is in a tabular form.
Answer: Zeguen
Question 35. The rock-covered plain formed at the foothills of mountains in desert regions due to the combined action of wind and flowing water is called
Answer: Pediment
Question 36.The dunes have two horns and look like a crescent moon.
Answer: Barchan
Question 37. The salt lakes of the Marusthali region are known as
Answer: Dhand
Question 38. The salt lakes of the desert are known as
Answer: Playa
Question 39. Whaleback landforms are also known is predominantly seen
Answer: Draas
WBBSE Chapter 1 Exogenetic Processes And Resultant Land Forms Match The Column
Question 1.
| Left Column | Right Column |
| 1. Waterfalls | A. Mouth of river |
| 2. Delta | B. Waterfalls of smaller dimension |
| 3. Alluvial cone | C. Peneplains |
| 4. Rapids | D. Upper course of the river |
| 5. Monadnocks | E. Foothills of mountains |
Answer: 1-D,2-A,3-E,4-B,5-C
Question 2.
| Left Column | Right Column |
| 1. Triangular delta | A. River Tiber |
| 2. Abandoned delta | B.River seine |
| 3. Estuarine delta | C. Yellow River |
| 4. Bird foot delta | D. River Ganga |
| 5. Cuspate delta | E. River Mississippi |
Answer: 1-D,2-C,3-B,4-E,5-A
Question 3.
| Left Column | Right Column |
| 1. Shiviling | A. Glacier in Antarctica |
| 2. Siachen | B. Snowless peaks |
| 3. Nunataks | C.Largest piedmont glacier |
| 4. Malaspina | D. Arete |
| 5. Lambert | E. Largest glacier in India |
Answer: 1-D,2-E,3-B,4-C,5-A
Question 4.
| Left Column | Right Column |
| 1. Fjord | A. Yosemite valley |
| 2. Hanging valley | B. Basket of eggs Topography |
| 3. pyramidal peak | C. Roass ice self |
| 4. Ice self | D. Nanda devi |
| 5. Drumlins | E.Sogne |
Answer: 1-E,2-A,3-D,4-C,5-B
Question 5.
| Left Column | Right Column |
| 1. Loess | A. Rocky Sand free surface |
| 2. Hammada | B. Qattara in Egypt |
| 3. Blow out | C. Gobi desert in asia |
| 4. Oasis | D. Loose materials |
| 5. Mid-Latitude deserts | E. Riyadh |
Answer: 1-D,2-A,3-B,4-E,5-C
Question 6.
| Left Column | Right Column |
| 1. Draas | A. Dunes contain |
| 2. Seif dunes | B. Hwang ho river |
| 3. Coastal dunes | C. Thar desert |
| 4. Shifting dunes | D. Sahara desert |
| 5. loess | E. Dhrian |
Answer: 1-D,2-C,3-A,4-E,5-B