Biology [NSTSE (National Science Talent Search Exam- Unified Council) Class 8]: Questions 29 - 32 of 399

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Question 29

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Question

MCQ▾

The advantage of Manure is:

I. It enriches the soil with nutrients

II. It adds organic matter to the soil which improves the quality of soil

III. It decreases water-holding capacity in sandy soil and drainage in clay soil

IV. It decreases the population of useful microorganisms in the soil

Find the correct statement/statement (s).

Choices

Choice (4)Response

a.

III and IV only

b.

I and II only

c.

I and III only

d.

II and IV only

Question 30

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Question

MCQ▾

A traditional method of sowing where the seeds are sown manually by scattering them in the moist soil is called:

Choices

Choice (4)Response

a.

Spacing

b.

Broadcasting

c.

Transplantation

d.

All of the above

Question 31

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Question

MCQ▾

Boll worm is an insect that attacks:

Choices

Choice (4)Response

a.

Paddy

b.

Cotton

c.

Wheat

d.

All of the above

Question 32

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Question

MCQ▾

Arrange the following agricultural practises in the correct order:

Harvesting, Irrigation, storage, manures, weeding, ploughing, winnowing, sowing and threshing.

Choices

Choice (4)Response

a.

Ploughing, sowing, irrigation, manures, winnowing, weeding, harvesting, threshing and storage.

b.

Ploughing, sowing, manures, irrigation, weeding, harvesting, threshing, winnowing and storage.

c.

Ploughing, sowing, winnowing, weeding, threshing, manures, irrigation, harvesting, and storage.

d.

Ploughing, threshing, harvesting, manures, storage, irrigation, winnowing, weeding and sowing.