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OTI365 - Olympiad -VIII Standard
Olympiad Class VIII Science - Food Production and Management Sample Questions with Answer

Olympiad Science - Food Production and Management

Exam Duration: 45 Mins Total Questions : 30

1 )

Identify the term that is used to describe the science or practice of growing crops and covers all the activities of animals and cultivation.

(a)
Animal husbandry
(b)
Horticulture
(c)
Agriculture
(d)
Nurseries

Solution :

Agriculture is the science of growing crops. It covers all the activities connected with cultivation and farm animals.

2 )

Which of the following words would complete the given sequence?

(a)
Broadcasting
(b)
Transplanting
(c)
Manuring
(d)
Drilling

Solution :

In the given sequence X represents the process of manuring.

3 )

Which of the following are the uses of machinery in agriculture?

(a)
Increase the quantity of crop yield.
(b)
Get the job done faster.
(c)
Reduce the dependency on human and animal labour.
(d)
Both (B) and (C)

Solution :

The use of machinery in agriculture increases the quantity of crop and gets the job done faster.

4 )

Which of the following factors are utilised to increase food production and to meet the demand of an increasing population?

(a)
Practicing efficient land management and development.
(b)
Continuous research to ensure sustainable development.
(c)
Using more pesticides to control pests.
(d)
Both (A) and (B)

Solution :

By practising efficient land management and continuous researches in the field of agriculture, increase in food production and helps to meet the demands of an increasing population

5 )

Which of the following are considered as modern technology in agriculture?

(a)
Genetic engineering is used to produce high quality traits in livestock and poultry
(b)
Application of synthetic chemicals to improve soil fertility
(c)
Using agromachinery for planting, harvesting and collecting agriculture produce
(d)
All the above

Solution :

Genetic engineering produce high quality traits in livestock and poultry, application of synthetic chemicals improve soil fertility and the using of agromachineryfor planting, harvesting and collecting agriculture produce are the modern technology in agriculture.

6 )

Which of the following is NOTa rabi crop?

(a)
Rice
(b)
Wheat
(c)
Mustard
(d)
Potato

Solution :

Rice is a Kharif crop.

7 )

Which of the following classes of microorganisms play(s) an important role in the nitrogen cycle?

(a)
Bacteria
(b)
Algae
(c)
Fungi
(d)
Both (A) and (B)

Solution :

Bacteria and algae play an important role in the nitrogen cycle

8 )

Which of the following terms is best suitable for stocking grains for emergencies?

(a)
Surplus stock
(b)
Storage
(c)
Buffer stock
(d)
Regular stock

Solution :

Grain stocked for emergencies is called buffer stock.

9 )

Which of the following crops requires more irrigation?

(a)
Pulses
(b)
Rice
(c)
Maize
(d)
Jowar

Solution :

Rice requires more irrigation

10 )

Which of the following describes the advantage of ploughing?

(a)
It allows the penetration of roots of plants.
(b)
It helps in proper aeration and eradicates weeds.
(c)
It promotes the growth of useful soil bacteria.
(d)
All of the above

Solution :

Ploughing loosens the soil and allows the roots to penetrate easily. It promotes the growth of useful soil bacteria that need air for respiration. When the soil is hard, plant growth is not as good

11 )

Which of the following practices does NOT improve the fertility of soil?

(a)
Keeping the land fallow
(b)
Practising crop rotation
(c)
Practising monocropping
(d)
Practising multiple cropping

Solution :

Monocropping does not improve soil fertility because the soil loses certain nutrients. Farmer should practise crop rotation to increase soil fertility. leguminous plants enrich the soil

12 )

Which of the following agricultural practices keeps the fields free for a season to replenish the lost nutrients?

(a)
Monocropping
(b)
Crop rotation
(c)
Multiple cropping
(d)
Field fallow

Solution :

Field fallow practices keep the fields free for a season to replenish the lost nutrients.

13 )

In which of the following agricultural methods does the farmer sows beans in his fields after harvesting a crop of wheat?

(a)
Crop rotation
(b)
Multiple cropping
(c)
Fallow field
(d)
Mixed cropping

Solution :

The practice of growing crops like legumes in one season and cereals the next season, on the same land, is called crop rotation.lt helps to enrich the soil. Farmers get good crops for harvesting.

14 )

Which of the following crops would enrich the soil with nitrogen?

(a)
Apple
(b)
Pea
(c)
Paddy
(d)
Potato

Solution :

Bacteria present in the root nodules of the leguminous crop plants have the ability to fix atmospheric nitrogen to form nitrogen compounds. Some of these are used by leguminous plants and the rest are left in the soil to enrich it.

15 )

Which of the following statements is NOT true?

(a)
The rotation of crops improves the fertility of soil.
(b)
The rotation of crops saves a lot of nitrogenous fertilisers.
(c)
The rotation of crops helps in weed and pest control.
(d)
The rotation of crops helps in the maintenance of nutrients in the soil

Solution :

The rotation of crops replinshes the lost fertility of the soil. Weeds and pests are controlled by weedicides and pesticides.

16 )

Which of the following methods enables us to select better and healthy seedlings for cultivation of rice?

(a)
Transplantation
(b)
Broadcasting
(c)
Chemical fertilisers
(d)
All of the above

Solution :

Transplantation enables us to select better and healthy seedlings for cultivation of rice.

17 )

Which of the following options explain the term eutrophication?

(a)
Toxication of water by fertilisers
(b)
Decrease the growth of algae
(c)
Increase in the fertility of the soil
(d)
All of the above.

Solution :

Eutrophication means toxication of water by fertilizers.

18 )

Which of the following crops get attacked by Gundhi bug?

(a)
Wheat
(b)
Sorghum
(c)
Paddy
(d)
Cotton

Solution :

Paddy crops get attacked by gundhi bug

19 )

Which of the following disadvantages is/are caused due to the farming of high yielding varieties of crops?

(a)
They give less fodder.
(b)
They require frequent weeding.
(c)
They require higher inputs.
(d)
All of the above.

Solution :

The farming of high yielding varieties of crops give less fodder, requires frequent weeding and higher inputs.

20 )

Which of the following are the uses of animal husbandry?

(a)
Increase in milk production
(b)
Proper utilisation of animal wastes
(c)
Protection of animals against diseases
(d)
All of the above

Solution :

Increase in milk production, proper utilisation of animal wastes, protection of animals against diseases are advantages of animal husbandry.

21 )

Which of the following programmes is also called operation flood?

(a)
Green revolution
(b)
White revolution
(c)
Black revolution
(d)
Yellow revolution

Solution :

White revolution is also called operation flood.

22 )

Which of the following has been used for increasing productivity of super milk cows?

(a)
Artificial insemination by only a pedigree bull.
(b)
Super ovulation of only a high production cow only.
(c)
Only embryo transplantation.
(d)
A combination of all the above involving a carrier cow

Solution :

Artificial insemination by a pedigree bull only, super ovulation of a high production cow only, embryo transplantation only are the process involved in production of super milk cows.

23 )

Match the following correctly.

Column -I	Column -II
a.Kharif crops	(i)Wheat
b.Rabi crops	(ii)Ploughing
c.Tilling	(iii)Harvesting
d.Combine	(iv)Paddy

(a)
a-i, b-ii, c-iii, d-iv
(b)
a-iv, b-i,c-ii, d-iii
(c)
a-iv, b-ill, c-ii,d-i
(d)
a-iii, b-iv, c-i, d-ii

Solution :

The correct combination is: Kharif crops - paddy, rabi crops - wheat, tilling - ploughing and combine - harvesting.

24 )

Which of the following agricultural tools is used to level the field?

(a)
Harrow
(b)
Leveller
(c)
Seed drill
(d)
Plough

Solution :

A leveller is used for levelling the field.

25 )

Which of these agricultural implements is used to sow seeds?

(a)
Wooden plank
(b)
Seed driller
(c)
Leveller
(d)
Plough

Solution :

Seed drill is used to sow seeds

26 )

Which of the following is made to prevent seed-borne diseases?

(a)
Sowing at the right depth
(b)
Spacing at right intervals
(c)
Sowing in highly wet soil
(d)
Treat with fungicide solutions

Solution :

Fungicide solution is used to treat seeds to prevent seed - borne diseases.

27 )

Which of these elements is/are required to synthesise proteins?

(a)
Magnesium
(b)
Nitrogen
(c)
Potassium
(d)
All of these

Solution :

Nitrogen is an essential element required to synthesise proteins

28 )

Which of these is fixed in root nodules of legumes by rhizobium bacteria?

(a)
Magnesium
(b)
Nitrogen
(c)
Chlorine
(d)
Manganese

Solution :

In the given nitrogen cycle X represents nitrates.

29 )

Which of the following agricultural practices keeps the fields free for a season to replenish the lost nutrients?

(a)
Monocropping
(b)
Crop rotation
(c)
Multiple cropping
(d)
Field fallow

Solution :

Field fallow keep the fields free for a season to replenish the lost nutrients.

30 )

Some farmers add a type of algae to barren field to support crop growth. Which algae did they use?

(a)
Blue algae
(b)
Green algae
(c)
Blue green algae
(d)
Brown algae

Solution :

Blue green algae when added to a barren field can support crop growth.

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Olympiad Class VIII Science - Food Production and Management Sample Questions with Answer

Olympiad Science - Food Production and Management

Exam Duration: 45 Mins Total Questions : 30

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