NSO Level 1- Science Olympiad (SOF) Class 8: Questions 286 - 292 of 1076

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Question number: 286

» Reproduction in Animals

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MCQ▾

Question

The endocrine gland which produces oestrogen is

Choices

Choice (4) Response

a.

Thyroid

b.

Testes

c.

Ovary

d.

None of the above

Question number: 287

» Crop Production and Management

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MCQ▾

Question

The practices followed by a traditional farmer

  1. Spraying organic pesticides

  2. Using manure

  3. Following drip irrigation

  4. Using modern tools

Choices

Choice (4) Response

a.

3 and 4

b.

1 and 2

c.

2 and 3

d.

1 and 4

Question number: 288

» Conservation of Plants and Animals

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MCQ▾

Question

Which of the following statements is true about a Biosphere Reserve?

Choices

Choice (4) Response

a.

There are no protected areas within its limit

b.

It is meant to conserve biodiversity and the culture of an area

c.

It is a protected area where only endemic species live.

d.

It is meant only for the conservation of animals and plants.

Question number: 289

» Conservation of Plants and Animals

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MCQ▾

Question

The factor that helps to maintain the biodiversity and culture of an area is

Choices

Choice (4) Response

a.

Ecology

b.

Biography

c.

Geography

d.

Biosphere reserves

Question number: 290

» Reproduction in Animals

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MCQ▾

Question

The first menstrual bleeding is called

Choices

Choice (4) Response

a.

Menstruation

b.

Menarche

c.

Menopause

d.

None of the above

Question number: 291

» Microorganisms

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MCQ▾

Question

Microorganisms having chlorophyll are

Choices

Choice (4) Response

a.

Algae

b.

Protozoa

c.

Bacteria

d.

Virus

Question number: 292

» Conservation of Plants and Animals

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MCQ▾

Question

Deforestation leads to flood. Correct explanation to this statement is

Choices

Choice (4) Response

a.

Deforestation reduces the infiltration capacity of the soil

b.

Reduced water holding capacity and infiltration capacity reduces the ground water level

c.

Deforestation decreases the water holding capacity of soil

d.

All a. , b. and c. are correct

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