WBBSE Solutions For Class 8 School Science Chapter 8 Human Food And Food Production Review Questions

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Chapter 8 Human Food And Food Production Review Questions  MCQs

Question 1. We obtain food indirectly from

  1. Plants
  2. Animals
  3. Soil
  4. Air

Answer: 3. Soil

Question 2. Which of the following is not a cereal crop?

  1. Cotton
  2. Paddy
  3. Wheat
  4. All of these

Answer: 1. Cotton

Question 3. Fibre crop is

  1. Peas
  2. Jute
  3. Potato
  4. Soya bean

Answer: 2. Jute

Question 4. Crops may be

  1. Animals
  2. Plants
  3. Both animals and plants
  4. None of these

Answer: 3. Both animals and plants

Read And Learn More WBBSE Solutions For Class 8 School Science Review Questions

Question 5. Which of the following is not a plantation crop?

  1. Ginger
  2. Tea
  3. Coffee
  4. Coconut

Answer: 1. Ginger

Question 6. Fruit cultivation comes under

  1. Horticulture
  2. Apiculture
  3. Pisciculture
  4. Sericulture

Answer: 1. Horticulture

Question 7. Excess fertilizer leads to

  1. Soil pollution
  2. Water pollution
  3. Air pollution
  4. All of these

Answer: 2. Water pollution

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Question 8. Weeds affect crop plants by

  1. Killing plants in fields before they grow
  2. Dominating the plants to grow
  3. Competing for various resources of crops causing low availability of nutrients
  4. All of these

Answer: 3. Competing for various resources of crops causing low availability of nutrients

Question 9. Kharif crops generally grow during

  1. Summer
  2. Winter
  3. All year round
  4. Spring

Answer: 1. Summer

Question 10. Which of the following is not a rabi crop?

  1. Gram
  2. Mustard
  3. Maize
  4. Sunflower

Answer: 3. Maize

Question 11. Agricultural practice includes

  1. Sowing of seed
  2. Irrigation
  3. Both sowing of seeds and irrigation
  4. Storage of crops

Answer: 3. Both sowing of seeds and irrigation

Question 12. Vermicompost means

  1. Manure prepared from cattle excreta, firm litter, etc.
  2. Manure is prepared by using earthworms to speed up decomposition
  3. Manure prepared chemically
  4. Manure is prepared by mulching plants in the soil

Answer: 2. Manure prepared by using earthworms to speed up decomposition

WBBSE Solutions For Class 8 School Science Chapter 8 Human Food And Food Production Review Questions

Question 13. Which animal is considered a farmer’s friend?

  1. Dog
  2. Earthworm
  3. Cow
  4. Pests

Answer: 4. Pests

Question 14. Plant and animal bodies in soil are decomposed by

  1. Bacteria
  2. Protozoa
  3. Virus
  4. Earthworm

Answer: 1. Bacteria

Question 15. Topsoil is used for

  1. Growth of plant
  2. Growth of animals
  3. Building Construction
  4. Water conservation

Answer: 1. Growth of plant

Question 16. Which is not used in turning and loosening of soil?

  1. Plough
  2. Tractor
  3. Seed drill
  4. Hoe

Answer: 3. Seed drill

Question 17. Plant micronutrient is

  1. Carbon
  2. Iron
  3. Nitrogen
  4. Calcium

Answer: 4. Calcium

Chapter 8 Human Food and Food Production Resources

Question 18. Which of the following cannot be provided to the soil by a chemical fertilizer?

  1. Nitrogen
  2. Humus
  3. Potassium
  4. Phosphorus

Answer: 2. Humus

Question 19. Are the rhizobium bacteria present in the root nodules of pea plants can fix which of the following from the atmosphere?

  1. Hydrogen
  2. Halogen
  3. Oxygen
  4. Nitrogen

Answer: 4. Nitrogen

  1. Question 20. Which is not an inorganic fertilizer?
  2. Nitrogen
  3. Potassium
  4. Superphosphate
  5. Compost

Answer: 4. Compost

Question 21. The acidity of the soil may be increased by

  1. (Nh4)2s04
  2. Nan02
  3. Naci
  4. All of these

Answer: 1. (Nh4)2s04

Question 22. An abiotic factor that affects crop production is

  1. Cattle
  2. Soil nature
  3. Rodents
  4. Pathogenic microbes

Answer: 2. Soil nature

Question 23. The process of removing unwanted plants from a crop field is called

  1. Harvesting
  2. Transplanting
  3. Branding
  4. Weeding

Answer: 4. Transplanting

Question 24. Replenishment of soil nutrients is helped by

  1. Crop rotation
  2. Irrigation
  3. Plowing
  4. Sowing

Answer: 1. Crop rotation

Question 25. The water content of the plant body is about

  1. 60%
  2. 70%
  3. 90%
  4. 10%

Answer: 3. 90%

Question 26. The process of water supply to the crop field is known as

  1. Plowing
  2. Drilling
  3. Irrigation
  4. Weeding

Answer: 3. Irrigation

Question 27. The traditional method of irrigation of crop fields is done by

  1. Drip system
  2. Dhekli method
  3. Sprinkler system
  4. Canal system

Answer: 2. Dhekli method

Question 28. Which of the following is not a weed?

  1. Paddy
  2. Grass
  3. Chenopodium
  4. Wild oat

Answer: 1. Paddy

Question 29. Which of the following is not a pest?

  1. Locust
  2. Cow
  3. Rat
  4. Leaf hoppers

Answer: 2. Cow

Question 30. Pests are

  1. Insects
  2. Harmful organisms
  3. Used for cleaning teeth
  4. Manures

Answer: 2. Harmful organisms

Question 31. Chemical control of pests may be done by

  1. Birds
  2. Ddt
  3. Sodium nitrate
  4. Hand pulling

Answer: 2. Ddt

Question 32. Control of pests by using other organisms is known as

  1. Biological control
  2. Physical control
  3. Chemical control
  4. Mechanical control

Answer: 1. Biological control

WBBSE Class 8 Science Important Review Questions

Question 33. Which is not a method of harvesting crops?

  1. Threshing
  2. Winnowing
  3. Storage
  4. All of these

Answer: 3. Storage

Question 34. Ifor storage, the crops must be free from

  1. Moisture
  2. Air
  3. Soil
  4. All of these

Answer: 1. Moisture

Question 35. Which is not a variety of paddy?

  1. Jaya
  2. Leghorn
  3. Ratna
  4. |Rr|

Answer: 2. Leghorn

Question 36. Boro paddy grows during

  1. Autumn
  2. Winter
  3. Summer
  4. Spring

Answer: 3. Summer

Question 37. What type of paddy is Ratna?

  1. Jaldi
  2. Majhasi
  3. Nabi
  4. None of these

Answer: 1. Jaldi

Question 38. Golden rice is rich in

  1. Vitamin a
  2. Vitamin c
  3. Vitamin d
  4. All of these

Answer: 1. Vitamin a

Question 39. A Seedbed of aman paddy is prepared during

  1. July-august
  2. June-July
  3. December-January
  4. March-April

Answer: 2. June-july

Question 40. Paddy grows properly in

  1. Dry field
  2. Wet field
  3. Field slightly submerged underwater
  4. Sandy field

Answer: 3. Field slightly submerged underwater

Question 41. Mango cultivation is facilitated by

  1. Rainfall
  2. Mist
  3. Sunlight
  4. High wind

Answer: 3. Sunlight

Question 42. Which type of soil is not suitable for mango cultivation?

  1. Alluvial soil
  2. Loamy soil
  3. Sandy soil
  4. Laterite soil

Answer: 3. Sandy soil

Question 43. Which variety of mango is not generally found in west Bengal?

  1. Alfonso
  2. Himsagar
  3. Golapkhas
  4. None of these

Answer: 1. Alfonso

Question 44. Mango is best propagated through

  1. Feed
  2. Grafting
  3. Fruit
  4. Seed

Answer: 2. Grafting

WBBSE Class 8 Science Practice Questions on Food Production

Question 45. Mango buds generally develop during

  1. December – January
  2. July – august
  3. October – November
  4. March – April

Answer: 1. December – January

Question 46. One of the largest tea-producing countries is

  1. Japan
  2. India
  3. Austalia
  4. America

Answer: 2. India

Question 47. Tea contains

  1. Caffeine
  2. Morphin
  3. Rennin
  4. None of these

Answer: 1. Caffin

Question 48. In India maximum tea is produced by

  1. West Bengal
  2. Kerala
  3. Assam
  4. Karnataka

Answer: 3. Assam

Question 49. Worker honeybees fan the honey chambers of their beehive by

  1. Legs
  2. Wings
  3. Head
  4. Abdomen

Answer: 2. Wings

Question 50. The culture of honeybees is known as

  1. Sericulture
  2. Pisciculture
  3. Apiculture
  4. Horticulture

Answer: 3. Apiculture

Question 51. An exotic variety of honeybee is

  1. Apis indica
  2. Apis dorsata
  3. Apis florea
  4. Apis mellifera

Answer: 4. Apis mellifera

Question 52. Capture fishery is performed in

  1. Lake
  2. Pond
  3. Sea
  4. All of these

Answer: 3. Sea

Question 53. Which of the following is not a carp?

  1. Rohu
  2. Koi
  3. Katla
  4. Bata

Answer: 2. Koi

Question 54. Bata fish is an example of

  1. Major carp
  2. Minor carp
  3. Exotic carp
  4. None of these

Answer: 2. Minor carp

Question 55. Which is the correct order?

  1. Spawn fry fingerling
  2. Fry spawn fingerling
  3. Fingerling spawn fry
  4. Fingerling fry spawn

Answer: 1. Spawn fry fingerling

Question 56. Sewage-fed fish culture is performed in

  1. Pond
  2. Sea
  3. Wastewater
  4. Irrigated water

Answer: 3. Wastewater

Question 57. The breeds hens of which incubate their eggs are known as

  1. Incubator
  2. Sitter
  3. Layer
  4. Broiler

Answer: 2. Sitter

Question 58. A battery cage is used for rearing

  1. Fowls
  2. Fishes
  3. Honeybee
  4. Pests

Answer: 1. Fowls

Question 59. The term deep litter is associated with

  1. Dairy
  2. Apiary
  3. Poultry
  4. Farming

Answer: 3. Poultry

 

Chapter 8 Human Food And Food Production Fill In The Blanks

Question 1. Paddy, and wheat are examples of ___________ crops.
Answer: Cereal

Question 2. Cotton and jute are examples of ___________ crops.
Answer: Fibre

Question 3. Tea and coffee are examples of ___________ crops.
Answer: Plantation

Question 4. Fruit and vegetable culture are included in the branch of agriculture, known as ___________.
Answer: Horticulture

Question 5. Summer crops are known as ___________ crops.
Answer: Kharif

Question 6. Rabi crops grow during___________.
Answer: Winter

Question 7. Soil aeration may be caused by ___________the soil.
Answer: Loosening

Question 8. ___________ are considered as farmer’s friends.
Answer: Earthworms

Question 9. Humus is the ___________ content of the soil.
Answer: Organic

Question 10. Only___________ soil help in the growth of plants.
Answer: Top

Question 11. The process of turning the soil is known as ___________.
Answer: Plowing

Question 12. a___________ attached with tractor help in ploughing.
Answer: Cultivator

Question 13. Nowadays___________ is used to sow the seeds.
Answer: Seed drills

Question 14. Organic manure is produced by ___________ of dead organisms.
Answer: Decomposition

Question 15. Ammonium sulfate increases the ___________ of soil.
Answer: Acidity

Human Food WBBSE Study Guide

Question 16. Sodium nitrate can ___________ the alkalinity of the soil.
Answer: Increases

Question 17. Root nodules of leguminous plants contain the bacteria ___________.
Answer: Rhizobium

Question 18. Irrigation helps in the supply of ___________ to the croplands.
Answer: Water

Question 19. Rats, locusts, and termites are considered as ___________ of crops.
Answer: Pests

Question 20. Some fungi produce___________ disease in potato.
Answer: Blight

Question 21. Pests may be quickly eliminated by ___________ control.
Answer: Chemical

Question 22. Control of pests by another organism, harmless to humans, is known as ___________ control.
Answer: Biological

Question 23. Granaries are used for___________ of food grains.
Answer: Storge

Question 24. ___________ paddy grows during autumn.
Answer: Aush

Question 25. Bhasamanik is a type of ___________ paddy.
Answer: Aman

Question 26. Golden rice is rich in vitamin ___________
Answer: A

Question 27. Mango is ___________ to India.
Answer: Indigenous

Question 28. Himsagar is a variety of ___________.
Answer: Mango

Question 29. Tea contains the stimulant ___________
Answer: Caffeine

Question 30. The tea-producing plant belongs to the genus ___________
Answer: Camellia

Question 31. Application of ___________ fertilizers increases the production of tea leaves.
Answer: Nitrogenous

Question 32. Eggs in bee colony are laid by ___________ bee
Answer: Queen

Question 33. Male honeybees are also called ___________.
Answer: Drones

Question 34. Worker honeybees have wax glands in their ___________
Answer: Abdomen

Question 35. Bees produce honey by mixing saliva with ___________
Answer: Nector

Question 36. The stages of the life cycle of a honeybee are egg, larva, ___________, and adult.
Answer: Pipa

Question 37. The culture of honeybees is known as ___________
Answer: Apiculture

Question 38. Mass movement of honeybees is known as___________
Answer: Swarming

Question 39. Pisciculture deals with the culture of ___________
Answer: Fishes

Question 40. Scales are absent on the ___________ of carps.
Answer: Head

Question 41. The fish tilapia is exotic but not a ___________
Answer: Carp

Question 42. Fish sperms and eggs unite to produce ___________
Answer: Spaws

Question 43. The culture of different types of carp in a pond is known as ___________ fish culture.
Answer: Composite

Question 44. The sewage-fed fishery is observed in the ___________ of East Kolkata.
Answer: Bheris

Question 45. Based on economic usefulness the fowl breeds may be-laying breed, ___________ breed, and dual breed.
Answer: Table

Question 46. Broilers are created for obtaining ___________.
Answer: Meat

Question 47. Deep method is used in poultry,___________
Answer: Litter

 

Chapter 8 Human Food And Food Production Identify As ‘True Or False

Question 1. Horticulture deals with the cultivation of fruits, vegetables, flowers, and decorative plants.
Answer: True

Question 2. Crops are plants of different kinds cultivated in a large area.
Answer: False

Question 3. Peas and beans are cereal crops.
Answer: False

Question 4. Rubber is a plantation crop.
Answer: True

Question 5. Cabbage is a flower.
Answer: False

Question 6. Groundnut is a Kharif crop.
Answer: True

Question 7. Kharif crops are dependent on monsoon.
Answer: True

Question 8. Maize is a rabi crop.
Answer: False

Question 9. Humus is the organic content of the soil.
Answer: True

Question 10. A seed drill is used for plowing.
Answer: False

Question 11. Hoe is used for sowing seeds.
Answer: False

Question 12. The tractor remains attached behind cultivator.
Answer: False

Question 13. Spoilt seeds float on water.
Answer: True

Question 14. Zinc is a macronutrient present in the soil.
Answer: False

Question 15. Co Jv dung is organic manure.
Answer: True

Review Questions for Class 8 Human Food and Production

Question 16. Superphosphate is inorganic fertilizer.
Answer: True

Question 17. Inorganic fertilizers are better than organic manure.
Answer: False

Question 18. Crop rotation is turning a crop upside down.
Answer: False

Question 19. Organic manures increase the water retention capacity of the soil.
Answer: True

Question 20. Irrigation means plowing a crop field.
Answer: False

Question 21. Weeds are unimportant plants in crop fields.
Answer: True

Question 22. Grass is a type of weed.
Answer: True

Question 23. A stem borer is an instrument used to cut a stem.
Answer: False

Question 24. Chemical control of pests is effective but harmful.
Answer: True

Question 25. Insecticides may pollute the water of rivers.
Answer: True

Question 27. Rice contains only carbohydrates and no protein.
Answer: False

Question 28. Basmati is push-type rice.
Answer: False

Question 29. Boro paddy is harvested in April-May.
Answer: True

Question 30. Mango is cultivated only in India.
Answer: False

Question 31. High rainfall is useful for mango cultivation.
Answer: False

Question 32. Himsagar mango is found only in West Bengal.
Answer: False

Question 33. Grafting of the mango tree is done from July – August.
Answer: True

Question 34. In the case of mango, it takes about two months for ripe fruits to be produced after flowering.
Answer: False

Question 35. Tea is cultivated on the slopes of hills.
Answer: True

Question 36. Tea may cause an increase in blood cholesterol.
Answer: False

Question 37. The Fluoride content of tea may cause bone decay.
Answer: False

Question 38. Tea plants belong to the genus Camellia.
Answer: True

Question 39. Tea plants may propagate both from seeds and plant parts.
Answer: True

Question 40. We get honey and wax from bee hives.
Answer: True

Question 41. Worker honeybees lay eggs.
Answer: False

Question 42. Worker honeybees have wax glands on their head.
Answer: False

Question 43. Apiculture is the first step of honeybee culture.
Answer: False

Question 44. The honey bee Collect nectar from nearby flowering plants.
Answer: True

Question 45. Honey is produced by queen bees.
Answer: False

Question 46. Pisciculture is the culture of fish.
Answer: True

Question 47. The cultural fishery is performed in the sea.
Answer: False

Question 48. Brackish water fishery is included under marine fishery.
Answer: False

Question 49. Grass carp is an Indian major carp.
Answer: False

Question 50. Exotic carps are indigenous property.
Answer: False

Question 51. For induced breeding fish are injected with pituitary extract.
Answer: True

Question 52. The pituitary gland of a fish is situated within its head.
Answer: True

Question 53. Tilapia and Koi are sewage-fed fishes.
Answer: True

Question 54. Poultry farming can be done only with ducks and fowl.
Answer: False

Question 55. Table breeds of poultry produce high quantities of meat.
Answer: True

Question 56. Light breeds of fowls weigh between 2 – 3 kg.
Answer: True

Question 57. Electrical batteries remain attached to battery cages.
Answer: False

Question 58. Egg contains a high amount of protein.
Answer: True

Question 59. Broilers are good layers.
Answer: False

 

Chapter 8 Human Food And Food Production Match The Column

 

1.

Column – A Column – B
A. Cereal 1. Peas
B. Pulses 2. Paddy
C. Tuber 3. Black pepper
D. Spice 4. Potato

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

2. 

 Column – A Column – B
A. Vegetable 1. Banana
B. Decorative plant 2. Rose
C. Fruit 3. Tomato
D. Flower 4. Cactus

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

3.

Column – A Column – B
A. Ploughing 1. Swing basket method
B. Sowing 2. Seed drill
C. Irrigation 3. Silo
D. Storage 4. Hoe

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

4.

Column – A Column – B
A. Paddy 1. Camellia
B. Mango 2. Oryza
C. Tea 3. Mangifera

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

5.

Column – A Column-B
A. Honeybee 1. Labeo
B. Rohu fish 2. Gall us
C. Fowl 3. Apis

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

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