Match the two columns: Column A Column B 1. Infiltration (i) Upper level of groundwater 2. Water table (ii) Scarcity of water 3. Purest form of water (iii) Seepage of water 4. Increasing population (iv) Saline water 5. Ocean water (v) Rainwater

For 1. Infiltration - (iii) Seepage of water. Infiltration is the seepage of water in the soil that is governed by gravitational force and capillary action. For 2. Water table - (i) Upper level of groundwater. Water table is upper level of groundwater surface in which the soil or rocks are permanently filled with water. For 3. The Purest form of water -- (v) Rainwater. Purest form of water is rainwater. Impurities and salts dissolved in water are left behind through the process of vaporization by the sun. For 4. Increasing population - (ii) Scarcity of water. Increasing population leads to scarcity of water. Water scarcity (closely related to water stress or water crisis) is the lac k of freshwater r esources to meet the standard water demand. For 5. Ocean water - (iv) Saline water. Ocean water is called saline water. It contains a high concentration of dissolve d salts (mainly sodium chloride). Column A Column B 1. Infiltration (iii) Seepage of water 2. Water table (i) Upper level of groundwater. 3. Purest form of water (v) Rainwater 4. Increasing population (ii) Scarcity of water 5. Ocean water (iv) Saline water

E M B I B E

Start Up Science 7>Chapter 16 - Scarcity of Water>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q B

EASY

7th CBSE

IMPORTANT

Earn 100

How does groundwater get recharged?

Important Questions on Scarcity of Water

MEDIUM

7th CBSE

IMPORTANT

Start Up Science 7>Chapter 16 - Scarcity of Water>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q B

What is aquifer? How is water present in aquifers pumped out?

MEDIUM

7th CBSE

IMPORTANT

Start Up Science 7>Chapter 16 - Scarcity of Water>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q B

List the major factors responsible for depletion of water table.

EASY

7th CBSE

IMPORTANT

Start Up Science 7>Chapter 16 - Scarcity of Water>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q C

Due to _____ the total water of the world remains constant.

EASY

7th CBSE

IMPORTANT

Start Up Science 7>Chapter 16 - Scarcity of Water>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q C

Seawater is _____ in taste.

EASY

7th CBSE

IMPORTANT

Start Up Science 7>Chapter 16 - Scarcity of Water>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q C

The groundwater present between the layers of hard rocks below the water table is called _____.

EASY

7th CBSE

IMPORTANT

Start Up Science 7>Chapter 16 - Scarcity of Water>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q C

_____ slows down the flow of rainwater on land and increases the absorption of water by soil.

MEDIUM

7th CBSE

IMPORTANT

Start Up Science 7>Chapter 16 - Scarcity of Water>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q C

Match the two columns:

	Column A		Column B
1.	Infiltration	(i)	Upper level of groundwater
2.	Water table	(ii)	Scarcity of water
3.	Purest form of water	(iii)	Seepage of water
4.	Increasing population	(iv)	Saline water
5.	Ocean water	(v)	Rainwater