Freshwater

Q.

Why is water precious?

Q.

The total water present on earth is called as 'hydrosphere'. It includes:

1. Oceans

2. Glaciers

3. Valleys

4. Atmospheric moisture

Q. Explain the process of rooftop rainwater harvesting with the help of a suitable diagram.

Q.

What is rainwater harvesting? What are the two ways in which it can be done?

Q.

Groundwater is also called ____________.

Q.

What are the different methods to make water fit for drinking?

Q.

Groundwater comes out of the earth at some places to form_________.

Q. Observe the figure given below and identify the process.

1. Water cycle
   
2. Water condensation
   
3. Water purification
   
4. Rainwater harvesting

Q. What is the main source of water for inland lakes?

1. Water tanks
2. Sea water
3. Ground water
4. Spring

Q. Write sources of water on the earth:

Q.

19. Explain the following terms:

(a) aquifers

Q. Seas and oceans are full of water. But only a very small part of water on earth is available for us to use.

1. False
2. True

Q. Water stored beneath the surface of the earth is called _________.

1. groundwater
2. rainwater
3. surface water
4. sea water

Q. What is the main source of water for inland lakes?

1. Sea water
2. Springs
3. Snow
4. Ground water

Q.

Which of the following nutrients help in insulation?

1. Minerals

2. Carbohydrate

3. Vitamin

4. Fat

Q. Ice caps and glaciers contain:

1. Fresh water
2. Demineralised water
3. Distilled water
4. Saline water

Q.

Explain the various uses of water.

Q.

Observe the figure given below and identify the process.

1. Water cycle

2. Water condensation

3. Water purification

4. Rain water harvesting.

Q. About 30% of the fresh water is found in?

1. ground water
2. other sources of water
3. glaciers
4. 0.3%

Q. What do you mean by rainwater harvesting? How is it useful to us?

Q. Which of the following are sources of freshwater?

1. Lake
2. Ocean
3. River
4. Groundwater
5. Glacier
6. Polar ice cap
7. Sea
8. Pond

Q. Which of the following are sources of freshwater?

This question can have more than one correct answer.

1. Oceans
2. Glaciers
3. Underground water
4. Sea