PRACTICE QUESTIONS

CHAPTER – 15
IMPROVEMENT IN FOOD RESOURCES

1. Which one is an oil yielding plant among the following?

(a) Lentil
(b) Sunflower
(c) Cauliflower

ta
(d) Hibiscus

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2. Which one is not a source of carbohydrate?

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(a) Rice

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(b) Millets

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(c) Sorghum
(d) Gram
3. Find out the wrong statement from the following by
m
(a) White revolution is meant for increase in milk production
co

(b) Blue revolution is meant for increase in fish production

u.

(c) Increasing food production without compromising with environmental quality is called
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as sustainable agriculture
ib

(d) None of the above

R

4. To solve the food problem of the country, which among the following is necessary?
on

(a) Increased production and storage of food grains

ed

(b) Easy access of people to the food grain

(c) People should have money to purchase the grains
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(d) All of the above

o
pl

5. Find out the correct sentence

U

(i) Hybridisation means crossing between genetically dissimilar plants

(ii) Cross between two varieties is called as inter specific hybridisation
(iii) Introducing genes of desired character into a plant gives genetically modified crop
(iv) Cross between plants of two species is called as inter varietal hybridisation
(a) (i) and (iii)
(b) (ii) and (iv)
(c) (ii) and (iii)
(d) (iii) and (iv)
6. Weeds affect the crop plants by

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 (a) killing of plants in field before they grow
(b) dominating the plants to grow
(c) competing for various resources of crops (plants) causing low availability of nutrients
(d) all of the above.
7. Which one of the following species of honey bee is an Italian species?
(a) Apis dorsata
(b) Apis florae
(c) Apis cerana indica

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(d) Apis mellifera

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8. Find out the correct sentence about manure

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(i) Manure contains large quantities of organic matter and small quantities of nutrients.

il
(ii) It increases the water holding capacity of sandy soil.

An
(iii) It helps in draining out of excess of water from clayey soil.
(iv) Its excessive use pollutes environment because it is made of animal excretory waste.
(a) (i) and (iii)
by
m
(b) (i) and (ii)
co

(c) (ii) and (iii)

u.

(d) (iii) and (iv)

bl

9. Cattle husbandry is done for the following purposes

ib

(i) Milk Production

R

(ii) Agricultural work

on

(iii) Meat production

ed

(iv) Egg production

(a) (i), (ii) and (iii)
ad

(b) (ii), (iii) and (iv)

o
pl

(c) (iii) and (iv)

U

(d) (i) and (iv)

10. Which of the following are Indian cattle?
(i) Bos indicus
(ii) Bos domestica
(iii) Bos bubalis
(iv) Bos vulgaris
(a) (i) and (iii)
(b) (i) and (ii)
(c) (ii) and (iii)

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 (d) (iii) and (iv)
11. Which of the following are exotic breeds?
(i) Brawn
(ii) Jersey
(iii) Brown Swiss
(iv) Jersey Swiss
(a) (i) and (iii)
(b) (ii) and (iii)

ta
(c) (i) and (iv)

up
(d) (ii) and (iv)

G
12. Poultry farming is undertaken to raise following

il
(i) Egg production

An
(ii) Feather production
(iii) Chicken meat
(iv) Milk production by
m
(a) (i) and (iii)
co

(b) (i) and (ii)

u.

(c) (ii) and (iii)

bl

(d) (iii) and (iv)

ib

13. Poultry fowl are susceptible to the following pathogens

R

(a) Viruses
on

(b) Bacteria
(c) Fungi
ed

(d) All of the above

ad

14. Which one of the following fishes is a surface feeder?

o

(a) Rohus
pl
U

(b) Mrigals
(c) Common carps
(d) Catlas
15. Animal husbandry is the scientific management of
(i) animal breeding
(ii) culture of animals
(iii) animal livestock
(iv) rearing of animals
(a) (i), (ii) and (iii)

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 (b) (ii), (iii) and (iv)
(c) (i), (ii) and (iv)
(d) (i), (iii) and (iv)
16. Which one of the following nutrients is not available in fertilizers?
(a) Nitrogen
(b) Phosphorus
(c) Iron
(d) Potassium

ta
17. Preventive and control measures adopted for the storage of grains include

up
(a) strict cleaning

G
(b) proper disjoining

il
(c) fumigation

An
(d) all of the above
18. Match the column A with the column B
(A) (B)
by
m
(a) Catla (i) Bottom feeders
co

(b) Rohu (ii) Surface feeders

u.

(c) Mrigal (iii) Middle-zone feeders

bl

(d) Fish farming (iv) Culture fishery

ib

19. Fill in the blanks

R

(a) Pigeon pea is a good source of ———.

on

(b) Berseem is an important———crop.

ed

(c) The crops which are grown in rainy season are called———crops.
(d) ———are rich in vitamins.
ad

(f) ——— crop grows in winter season.

o
pl

20. What is a GM crop? Name any one such crop which is grown in India.
U

21. List out some useful traits in improved crop?

22. Why is organic matter important for crop production?
23. Why is excess use of fertilizers detrimental for environment?
24. Give one word for the following
(a) Farming without the use of chemicals as fertilizers, herbicides and pesticides is known
as ———.
(b) Growing of wheat and groundnut on the same field is called as ———.
(c) Planting soyabean and maize in alternate rows in the same field is called as ———.

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 (d) Growing different crops on a piece of land in pre-planned succession is known as——
—.
(e) Xanthium and Parthenium are commonly known as———.
(f) Causal organism of any disease is called as ———.
25. Match the following A and B
(A) (B)
(a) Cattle used for tilling and carting (i) Milk producing female
(b) Indian breed of chicken (ii) Broiler

ta
(c) Sahiwal, Red Sindhi (iii) Drought animals

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(d) Milch (iv) Local breed of cattle

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(e) Chicken better fed for obtaining meat (v) Aseel

il
26. If there is low rainfall in a village throughout the year, what measures will you suggest to

An
the farmers for better cropping?

by
27. Group the following and tabulate them as energy yielding, protein yielding, oil yielding and
fodder crop: Wheat, rice, berseem, maize, gram, oat, pigeon gram, sudan grass, lentil,
m
soyabean, groundnut, castor and mustard.
co

28. Define the term hybridization and photoperiod.

u.

29. Fill in the blanks

bl

(a) Photoperiod affect the————.

ib

(b) Kharif crops are cultivated from————to————.

R

(c) Rabi crops are cultivated from————to————.

on

(d) Paddy, maize, green gram and black gram are————crops.

ed

(e) Wheat, gram, pea, mustard are————crops.

30. Cultivation practices and crop yield are related to environmental condition. Explain.
ad

31. Fill in the blanks

o
pl

(a) A total of———nutrients are essential to plants.

U

(b) ———and———are supplied by air to plants.

(c) ———is supplied by water to plants.
(d) Soil supply———nutrients to plants.
(e) ———nutrients are required in large quantity and called as———.
(f) ——— nutrients are needed in small quantity for plants and are called ———.
32. Differentiate between compost and vermicompost?
33. Arrange these statements in correct sequence of preparation of green manure.
(a) Green plants are decomposed in soil.
(b) Green plants are cultivated for preparing manure or crop plant parts are used.

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 (c) Plants are ploughed and mixed into the soil.
(d) After decomposition it becomes green manure.
34. An Italian bee variety A. mellifera has been introduced in India for honey production. Write
about its merits over other varieties.
35. In agricultural practices, higher input gives higher yield. Discuss how?
36. Discuss the role of hybridisation in crop improvement.
37. Define (i) Vermicompost
(ii) Green manure

ta
(iii) Bio fertilizer

up
38. Discuss various methods for weed control.

G
39. Differentiate between the following

il
(i) Capture fishery and Culture fishery

An
(ii) Mixed cropping and Inter cropping
(iii) Bee keeping and Poultry farming
40. Give the merits and demerits of fish culture? by
m
41. Below Figure shows the two crop fields [Plots A and B] have been treated by manures and
co

chemical fertilizers respectively, keeping other environmental factors same. Observe the
u.

graph and answer the following questions.

bl

(i) Why does plot B show sudden increase and then gradual decrease in yield?
ib

(ii) Why is the highest peak in plot A graph slightly delayed?

R

(ii) What is the reason for the different pattern of the two graphs?
on
ed
o ad
pl
U

42. What do you understand by composite fish culture?

43. Why bee keeping should be done in good pasturage?
44. Write the modes by which insects affect the crop yield.
45. Discuss why pesticides are used in very accurate concentration and in very appropriate
manner?

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46. Name two types of animal feed and write their functions.
47. What would happen if poultry birds are larger in size and have no summer adaptation
capacity? In order to get small sized poultry birds, having summer adaptability, what
method will be employed?
48. Suggest some preventive measures for the diseases of poultry birds.
49. Complete the crossword puzzle:

ta
up
G
il
An
by
m
co
u.
bl
ib
R
on

Across
1. Oil yielding plant (9)
ed

3. Crop grown in winter season (4)

ad

5. Fixed by Rhizobium (8)

o

9. Common honey bee (4)

pl

Downward
U

2. Animal feed (6)

4. A micronutrient (5)
6. Unwanted plant in crop fields (4)
7. An exotic breed of chicken(7)
8. Bottom feeders in fish pond(7)
10. A marine fish (4)

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50. Complete the crossword puzzle :

ta
up
G
il
An
by
m
co
u.

Across
bl

1. It is prepared from rotten vegetable matter and animal refuse.

ib

2. A major source of nutrients in fields and an organic substance.

R

3. The cereal grains are dried before___.

Downward
on

4. Removal of the grains from the chaff.

5. The process of putting the seeds in the soil.
ed

6. The winter season crops like wheat, barley, gram, pea. etc are called.
o ad
pl
U