NSO Level 1- Science Olympiad (SOF) Class 8: Questions 276 - 281 of 1076

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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 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

Question number: 281

» Crop Production and Management

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MCQ▾

Question

Direction: Select the correct explanation of the statement given in question from the following sets

Growing different crops in different seasons helps to retain the lost nutrients in the soil.

  1. All the crops do not need the same nutrients.

  2. Legumes help to retain nitrogen in the soil.

  3. The remains of different crops add different nutrients in the soil.

Choices

Choice (4)Response

a.

1,2 and 3

b.

2 and 3

c.

1 and 3

d.

1 and 2

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