NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 1804 - 1810 of 2000

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Question number: 1804

» Biology » Natural Resources

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Question

Eutrophication

Choices

Choice (4) Response

a.

Is depletion of oxygen from the aquatic reservoir

b.

Caused by algal bloom in aquatic reservoir

c.

Caused by leaching of fertilizers from the farmland into the aquatic reservoir

d.

All a. , b. and c. are correct

Question number: 1805

» Biology » Natural Resources

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Question

Anthropogenic activities are

Choices

Choice (4) Response

a.

Human made

b.

Volcanic eruption

c.

Earthquakes

d.

Cyclone

Question number: 1806

» Biology » Natural Resources

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Question

Which of the following is an example of natural resources?

Choices

Choice (4) Response

a.

Soil

b.

Air

c.

Water

d.

All a. , b. and c. are correct

Question number: 1807

» Biology » Natural Resources

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Greenhouse effect is

Choices

Choice (4) Response

a.

Re-radiation from the greenhouse gases to the Earth’s surface

b.

Can be one of the cause of global warming

c.

Natural process which keeps our planet warm

d.

All a. , b. and c. are correct

Question number: 1808

» Biology » Natural Resources

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Question

Which of the following is renewable resource?

Choices

Choice (4) Response

a.

Wind

b.

Petroleum

c.

Iron

d.

Coal

Question number: 1809

» Biology » Improvement in Food Resources

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Question

Weeds are

Choices

Choice (4) Response

a.

unwanted plants

b.

hinders with the plant growth

c.

compete with the crop for food, soil, water, sunlight and nutrients

d.

All a. , b. and c. are correct

Question number: 1810

» Biology » Improvement in Food Resources

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Question

Which of the following is an example of Single Cell Protein?

Choices

Choice (4) Response

a.

Yeast and fungi

b.

Bacteria and algae

c.

Both a. and b. are correct

d.

None of the above

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