CBSE (Central Board of Secondary Education) Class-8 Science: Questions 236 - 242 of 465

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Question 236

Question MCQ▾

When force acts between two heavenly bodies it is called:

Choices

Choice (4)Response

a.

Thrust

b.

Pressure

c.

Gravitational force

d.

Force of gravity

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Question 237

Question MCQ▾

Secondary sexual characters help to distinguish between:

Choices

Choice (4)Response

a.

Male and female

b.

Birds and mammals

c.

Boys and girls

d.

Between sex organs

Edit

Question 238

Question MCQ▾

Force is defined as:

Choices

Choice (4)Response

a.

Push

b.

Friction

c.

Pull

d.

Both a. and c. are correct

Edit

Question 239

Question MCQ▾

The type of reproduction found in hydra is:

Choices

Choice (4)Response

a.

Asexual reproduction

b.

Budding

c.

Binary fission

d.

Sexual reproduction

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Question 240

Question MCQ▾

Deforestation leads to decrease in the level of:

Choices

Choice (4)Response

a.

Carbon dioxide

b.

Oxygen

c.

All of the above

d.

Question does not provide sufficient data or is vague

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Question 241

Question MCQ▾

Atmosphere is defined as:

Choices

Choice (4)Response

a.

Force between two bodies due to their mass

b.

Earth՚s surface

c.

Gaseous envelop surrounding the earth

d.

Air exerts pressure in all directions

Edit

Question 242

Question MCQ▾

What is Atmospheric Pressure?

Choices

Choice (4)Response

a.

Thrust per unit area

b.

The force with which the earth pulls a body towards itself

c.

Force between two magnetic poles

d.

Pressure exerted by the air column above us

Edit