NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 1855 - 1861 of 2000

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Question number: 1855

» Biology » Improvement in Food Resources

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Question

Which of the following is not referred as organic farming?

Choices

Choice (4) Response

a.

Chemical fertilizer

b.

Effluent of biogas

c.

Vermicomposting

d.

Introducing organisms which can feed on pests (biological control method)

Question number: 1856

» Biology » Natural Resources

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Question

Advantages of mining are

Choices

Choice (4) Response

a.

Establishment of facilities like hospitals, school, transportation etc.

b.

Stable economic condition of country

c.

Development

d.

All a. , b. and c. are correct

Question number: 1857

» Biology » Improvement in Food Resources

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Question

Development of more than two crops in a same field in a definite pattern

Choices

Choice (4) Response

a.

Single cropping

b.

Intercropping

c.

Mixed cropping

d.

None of the above

Question number: 1858

» Biology » Natural Resources

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Question

Principle of biogas production is

Choices

Choice (4) Response

a.

Decomposition and Degradation

b.

Fermentation

c.

Methanogenesis

d.

Question does not provide sufficient data or is vague

Question number: 1859

» Biology » Improvement in Food Resources

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Question

Which of the following contains unsaturated fatty acids?

Choices

Choice (4) Response

a.

Butter

b.

Ghee

c.

Oil

d.

Question does not provide sufficient data or is vague

Question number: 1860

» Biology » Improvement in Food Resources

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Question

Cyanobacteria or blue green algae are blue green in appearance due to presence of

Choices

Choice (4) Response

a.

Chlorophyll a

b.

Chlorophyll b

c.

C phycocyanin

d.

Both b. and c. are correct

Question number: 1861

» Biology » Improvement in Food Resources

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Question

Chemicals that is used to kill insects is known as

Choices

Choice (4) Response

a.

Rodenticides

b.

Insecticides

c.

Pesticides

d.

Herbicides

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