NSO Level 1- Science Olympiad (SOF) Class 5: Questions 250 - 254 of 454

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Question 250

Question

MCQ▾

________ kills the germs from the water.

Choices

Choice (4)Response

a.

Condenses

b.

Freezing

c.

Boiling

d.

Purified

Question 251

Question

MCQ▾

What happens to the water table of a place having droughts for a long period of time?

Choices

Choice (4)Response

a.

It gets lower because of continuous evaporation and flow

b.

It gets higher because of continuous evaporation and flow

c.

It gets replenished continuously

d.

It remains the same because soil protects it from the heat

Question 252

Question

MCQ▾

Which of the following is a correct sentence about recycled water?

Choices

Choice (4)Response

a.

Blackwater is water that has been mixed with waste from the toilet.

b.

You can use your collected water for flushing the toilet.

c.

Place your colander over a large pot to collect the water while you՚re washing.

d.

All a., b. and c. are correct

Question 253

Question

MCQ▾

The method used to separate insoluble impurities from water ________.

Choices

Choice (4)Response

a.

Filtration

b.

Evaporation

c.

Condensation

d.

Decantation

Question 254

Question

MCQ▾

Rainwater harvesting is

Choices

Choice (4)Response

a.

Allowing water to go into rivers and lakes

b.

Storing ground water by not using water from the wall

c.

To stop growing crops to save water

d.

Collecting rainwater and storing it for later use.

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