Biology [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 427 - 433 of 518

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Question 427

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Question

MCQ▾

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 428

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Question

MCQ▾

Which of the following is renewable resource?

Choices

Choice (4)Response

a.

Wind

b.

Petroleum

c.

Iron

d.

Coal

Question 429

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Question

MCQ▾

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 430

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Question

MCQ▾

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

Question 431

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Question

MCQ▾

Father of green revolution in India is

Choices

Choice (4)Response

a.

Ramachandran

b.

M. S. Swaminathan

c.

Varghese Kurian

d.

Anandkrishna

Question 432

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Question

MCQ▾

Fermentation takes place

Choices

Choice (4)Response

a.

in the presence of CO2

b.

in the absence of CO2

c.

in the presence of oxygen

d.

in the absence of oxygen

Question 433

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Question

MCQ▾

Which of the following is rich source of protein?

Choices

Choice (4)Response

a.

Wheat

b.

Pulse

c.

Single Cell Protein

d.

Rice