Groundwater

Q.

What is lake tapping? Why it takes place?

Q.

Question 16

How do the areas covered with concrete affect the availability fo groundwater?

Q. Groundwater gets recharged by the process of :

1. Distillation
2. Condensation
3. Infiltration
   
4. Sedimentation

Q.

Question 8

Wells are fed by

(a) Pond water
(b) lake water
(c) rainwater
(d) groundwater

Q.

What is the source of water for wells, tube wells, springs and many rivers?

Q.

Underground water can be drawn by digging wells and tube wells.

1. True
2. False

Q.

What happens if the ground water is used in excess?

THANK YOU FOR ANSWERING

Q. Well water is an example of potable water.

1. Floods
2. Dams

Q.

A ____________ (spring/lake) is source of groundwater.

Q.

What is the difference between ground water and aquifer?

Q. Arrange the following in the decreasing order with respect to its availability on the Earth.

1. Salt water
2. Frozen water
3. Groundwater
4. Surface water

Q. Which of the following is a source of groundwater? ​

1. Glacier
2. River
3. Handpump
4. Stream

Q. How does concrete flooring affect groundwater?

Q.

There are ten tube-wells in a lane of fifty houses. What could be the long term impact on the water table?

Q.

The passage of water through soil particles is called evaporation.

1. True
2. False

Q.

Why does the level of water table decrease in certain areas of our country?

Q.

In a small town, the number of water pumps, concrete houses and roads increased. What happens to the water table of that place?

1. It becomes lower

2. It becomes higher

3. It remians unaffected

4. It first becomes lower and then higher

Q. Which of the following is polluted by man or factories?

1. Rivers
2. Ponds
3. Ground water
4. All of the above

Q.

How do the areas covered with concrete affect the availability of groundwater?

Q.

Name the following:

2. Use of earthworms to decompose organic matter.

Q.

28. Replace the following with a word or a phrase.

e. reservoirs of underground water

Q.

Some of the water from ponds, rivers and lakes undergoes deep into the earth. This process is called------------

Q. How do the areas covered with concrete affect the availability of ground water? [2 marks]

Q.

Explain the term groundwater.

Q.

6. What will happen if we use up too much of the groundwater?

Q. What if it's too hard for the people to go to the banks of the rivers

Q. Identify which of the following makes use of groundwater.

1. Concrete canal
2. Dam
3. Borewell
4. Swimming pool

Q.

1. From where do we get water for daily use?

Q. Hand pump, tube well and well all are the source of
(a) underground water
(b) sea water
(c) river water
(d) rainwater

Q. Seawater is not used for drinking purposes because:

1. it is salty
2. it is poisonous
3. it is not good for health
4. it supports aquatic life