NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 1858 - 1863 of 2000

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Question number: 1858

» Biology » Natural Resources

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MCQ▾

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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MCQ▾

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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MCQ▾

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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MCQ▾

Question

Chemicals that is used to kill insects is known as

Choices

Choice (4)Response

a.

Rodenticides

b.

Insecticides

c.

Pesticides

d.

Herbicides

Question number: 1862

» Biology » Improvement in Food Resources

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MCQ▾

Question

Fertility of the soil can be lost due to

Choices

Choice (4)Response

a.

Soil erosion

b.

Excessive grazing

c.

Excessive use of fertilizers

d.

All a. , b. and c. are correct

Question number: 1863

» Biology » Improvement in Food Resources

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MCQ▾

Question

Organic farming will be helpful in

Choices

Choice (4)Response

a.

reducing the harmful effect of chemical fertilizer on human beings

b.

improving crop production

c.

improving insect resistance

d.

Question does not provide sufficient data or is vague

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