CBSE (Central Board of Secondary Education) Class-6 Science: Questions 231 - 236 of 318

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Question 231

Question MCQ▾

The purpose of recharge well is:

Choices

Choice (4)Response

a.

To collect vast amount of water falling on ground quickly when it rains and make it seep into soil gradually

b.

To collect vast amount of water

c.

To recharge the ground water

d.

Question does not provide sufficient data or is vague

Edit

Question 232

Question MCQ▾

The gas which helps to keep the earth warm is:

Choices

Choice (4)Response

a.

Oxygen

b.

Nitrogen

c.

Carbon-dioxide

d.

None of the above

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Question 233

Question MCQ▾

Aquatic animals and aquatic plants takes oxygen from air dissolved in:

Choices

Choice (4)Response

a.

Water

b.

Salt

c.

Question does not provide sufficient data or is vague

d.

All of the above

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Question 234

Question MCQ▾

Uses of air are:

Choices

Choice (4)Response

a.

Compressed air is used to fill tyres

AND

Dispersal of seeds and pollen

b.

For burning fuels

c.

Used by human beings for breathing

d.

All a., b. and c. are correct

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Question 235

Question MCQ▾

The amount of water vapour present in the air is known as:

Choices

Choice (4)Response

a.

Transpiration

b.

Evaporation

c.

Humidity

d.

Moisture

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Question 236

Question MCQ▾

The purpose of electric switch is to:

Choices

Choice (4)Response

a.

Close the circuit

b.

Turn on an electrical appliance

c.

Turn on or turn off an electrical appliance

d.

Turn off an electrical appliance

Edit