NSO Level 1- Science Olympiad (SOF) Class 8: Questions 193 - 198 of 1076

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Question number: 193

» Reproduction in Animals

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MCQ▾

Question

Pick out the changes happening in boys during the stage of adolescence.

Choices

Choice (4)Response

a.

Vocal cord become prominent and the voice becomes hoarse.

b.

Broadening of shoulders and widening of chest

c.

Appearance of hair in areas like underarms, face, hands and legs.

d.

All a. , b. and c. are correct

Question number: 194

» Conservation of Plants and Animals

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MCQ▾

Question

In South African forests trees like yellow wood, fig, pine, the white stink wood etc, are seen. These trees can be referred by the term

Choices

Choice (4)Response

a.

Fauna of the area

b.

Ecology of the area

c.

Flora of the area

d.

Species of the area

Question number: 195

» Microorganisms

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MCQ▾

Question

Penicillin is prepared from penicillium. It is a

Choices

Choice (4)Response

a.

Virus

b.

Bacteria

c.

Fungus

d.

Protozoa

Question number: 196

» Microorganisms

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MCQ▾

Question

Which of the following is not a method of food preservation?

Choices

Choice (4)Response

a.

Pasteurization

b.

Vaccination

c.

Deep freezing

d.

Pickling

Question number: 197

» Microorganisms

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MCQ▾

Question

Which of the following is not an activity of friendly microbes?

Choices

Choice (4)Response

a.

Cause communicable diseases

b.

Helps in making curd and bread

c.

Increases soil fertility

d.

Helps in the production of medicines and vaccines

Question number: 198

» Reproduction in Animals

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MCQ▾

Question

This hormone increases the glucose uptake and metabolism in our body.

Choices

Choice (4)Response

a.

Insulin

b.

Adrenalin

c.

Thyroxin

d.

None of the above

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