NSO Level 1- Science Olympiad (SOF) Class 9: Questions 480 - 484 of 1123

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Question number: 480

» Biology » Fundamentals Unit of Life

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MCQ▾

Question

Plastids are found in

Choices

Choice (4) Response

a.

neither plant nor animal cells

b.

plant cells only

c.

animal cells only

d.

plant and animal cells

Question number: 481

» Biology » Natural Resources

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Question

Which of these following statements are true?

Choices

Choice (4) Response

a.

The quality of the topsoil is an important factor that decides the biodiversity of that area

b.

The percentage of carbon dioxide gas in the atmosphere has decreased since the industrial revolution

c.

The water inside a deep reservoir would be warmer than the water at the surface which gets heated by the sun

d.

The fine particles of soil may be carried away by insects and small birds

Question number: 482

» Chemistry » Atoms & Molecules

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MCQ▾

Question

The symbols of some elements are given below. Which of the following is wrongly matched?

Choices

Choice (4) Response

a.

Chlorine –

b.

Carbon-

c.

Calcium-

d.

Potassium –

Question number: 483

» Biology » Health & Diseases

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MCQ▾

Question

Making anti-viral medicines is more difficult than making anti-bacterial medicines because

Choices

Choice (4) Response

a.

Viruses have a protein coat

b.

Viruses make use of host machinery

c.

Viruses have very few biochemical mechanisms of their own

d.

Viruses are dormant in nature

Question number: 484

» Biology » Improvement in Food Resources

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MCQ▾

Question

Composite fish culture system is commonly used for

Choices

Choice (4) Response

a.

Fish farming

b.

Inland fish capture

c.

Marine fish capture

d.

Capture fishing

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