NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 1847 - 1854 of 2000

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Question number: 1847

» Biology » Improvement in Food Resources

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Question

Nutrients required in large amount is known as

Choices

Choice (4) Response

a.

Trace element

b.

Micronutrients

c.

Macronutrients

d.

None of the above

Question number: 1848

» Biology » Improvement in Food Resources

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Question

Monomers of lipid are

Choices

Choice (4) Response

a.

Amino acids

b.

Monosaccharide

c.

Fatty acid and glycerol

d.

Question does not provide sufficient data or is vague

Question number: 1849

» Biology » Natural Resources

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Question

Which of the following is major source of the water to soil?

Choices

Choice (4) Response

a.

Lakes

b.

Ponds

c.

River

d.

Rainfall

Question number: 1850

» Biology » Improvement in Food Resources

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Question

Products of fermentation are

Choices

Choice (4) Response

a.

Bread

b.

Idli and dosa

c.

Beer and wine

d.

All a. , b. and c. are correct

Question number: 1851

» Biology » Improvement in Food Resources

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Question

Disadvantages of selective breeding are

Choices

Choice (4) Response

a.

Introduces alien species

b.

Loss of biodiversity

c.

Crops can become diseases prone

d.

All a. , b. and c. are correct

Question number: 1852

» Biology » Improvement in Food Resources

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Question

Development of more than two crops in a same field which is not in definite pattern is known as

Choices

Choice (4) Response

a.

Mixed cropping

b.

Single cropping

c.

Intercropping

d.

None of the above

Question number: 1853

» Biology » Natural Resources

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Question

A species whose population is decreasing continuously is known as

Choices

Choice (4) Response

a.

Endangered

b.

Extinct

c.

Rare

d.

None of the above

Question number: 1854

» Biology » Natural Resources

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Question

The ultimate source of energy on Earth is

Choices

Choice (4) Response

a.

Petroleum

b.

Solar energy

c.

Coal

d.

Fossil fuel

Developed by: