NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1244 - 1248 of 2028

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Question number: 1244

» Biology » Food Production and Management

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MCQ▾

Question

What are the components of integrated farming system?

(I) Fishes

(II) livestock

(III) Crops

(IV) Labour

Find the correct statement/statement (s).

Choices

Choice (4) Response

a.

II, III and IV only

b.

II and III only

c.

I, II and IV only

d.

I and II only

Question number: 1245

» Biology » Food Production and Management

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MCQ▾

Question

Method/methods of irrigation which are composed of pipelines in which nozzles are fitted at various locations. Water comes out of the nozzle and is sprinkled on plants, called:

Choices

Choice (4) Response

a.

Sprinkler system

b.

Drip irrigation

c.

None of the above

d.

All of the above

Question number: 1246

» Biology » Food Production and Management

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MCQ▾

Question

The process by which ammonia is converted to nitrites and then to nitrates is called:

Choices

Choice (4) Response

a.

Nitrogen cycle

b.

Nitrogenous

c.

Denitrification

d.

Nitrification

Question number: 1247

» Biology » Food Production and Management

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MCQ▾

Question

The advantage of levelling is:

I. It does not break crumbs into smaller pieces

II. It protects the upper fertile layer of soil from erosion

III. It helps the soil to retain moisture

IV. It promotes uniform irrigation

Find the correct statement/statement (s).

Choices

Choice (4) Response

a.

II, III and IV only

b.

II and III only

c.

I, II, III and IV only

d.

I and IV only

Question number: 1248

» Biology » Food Production and Management

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MCQ▾

Question

The process by which humans change the characteristics of plants over time to make them better crops and more nourishing food. It is a science based on principles of genetics and cytogenetic. It aims at improving the genetic makeup of the crop plants is called:

Choices

Choice (4) Response

a.

Crop improvement

b.

Eugenics

c.

Plant breeding

d.

Genetic engineering

Developed by: