NSO Level 1- Science Olympiad (SOF) Class 8: Questions 274 - 280 of 1076

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Question number: 274

» Microorganisms

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MCQ▾

Question

The method used to preserve milk for a short period is

Choices

Choice (4) Response

a.

Fermentation

b.

Freezing

c.

Pasteurization

d.

All of the above

Question number: 275

» Microorganisms

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MCQ▾

Question

Which of these is used in beverage industry to make alcohol commercially?

Choices

Choice (4) Response

a.

Bacteria

b.

Penicillium

c.

Yeast

d.

Vinegar

Question number: 276

» Reproduction in Animals

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MCQ▾

Question

Generally the adolescence period in human beings is between the ages of

Choices

Choice (4) Response

a.

13 to 19

b.

15 to 20

c.

11 to 19

d.

Question does not provide sufficient data or is vague

Question number: 277

» Conservation of Plants and Animals

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MCQ▾

Question

The special term used for a species of plants or animals found exclusively in a particular area is called

Choices

Choice (4) Response

a.

Flora and fauna

b.

Ecology

c.

Endemic species

d.

Biodiversity

Question number: 278

» Microorganisms

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MCQ▾

Question

Which of the following can fix atmospheric nitrogen in the soil?

Choices

Choice (4) Response

a.

Mushroom

b.

Yeast

c.

Blue green algae

d.

Fungus

Question number: 279

» Crop Production and Management

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MCQ▾

Question

Direction: Study the picture carefully and answer

The insects given in the image

The Insects Given in the Image

The insects given in the image

The insects given in the picture are farmers’

Choices

Choice (4) Response

a.

Enemies

b.

Neither friends nor enemies

c.

Friends

d.

None of the above

Question number: 280

» Reproduction in Animals

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MCQ▾

Question

Here are the ways how AIDS spreads from one person to another. Pick out the Incorrect one.

Choices

Choice (4) Response

a.

Through sexual contact

b.

Infected needles

c.

Blood transfusion

d.

Through personal contact

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