Answer: Option B. -> False
:
B

The given statement is false. Water (moisture) present in the soil also evaporates. This is the reason why wet mud turns dry after sometime.

Answer: Option B. -> Infiltration
:
B

The seeping of water into the ground is known as infiltration. 
The rain water soaks into the soil on the ground surface and enters the soil, thereby increasing the level of ground water. 
The figure given below shows infiltration of water.

Answer: Option B. -> False
:
B
When water evaporates, it transfer to the air in the form of water vapour. Water requires heat from the surroundings to evaporate. This heat can be provided by warm and dry air. An example is the evaporation of water inside a closed room. Hence, sunlight is not necessary for evaporation of water.

Answer: Option C. -> Flood
:
C

Flood causes a sudden rise of water level in a region. It causes massive damage and destruction.

• The crop fields, forests, villages, and cities may get submerged by water.


• The animals living in the water get carried away with the water and can get trapped in land areas and die when flood water recedes.


• Sudden rise in water levels in rivers can cause flash floods and directly claim lives and damage property.

Answer: Option C. -> Mopping the floor instead of washing it
:
A, C, and D
Water management refers to the judicial use of water. It does not mean that we should stop using water, even when it is necessary.
Some of the steps that can be taken towards water management are:
1) Turning off the tap when not in use
2) Fixing the broken pipes and faucets.
3) Mopping the floor instead of washing it
Eventhough washing of clothes cannot be avoided, we can reduce the amount of water wasted during this process.

Answer: Option B. -> Oceans
:
B and D
About 71% of the earth's surface is covered with water. Out of that 97% of water is present in seas and oceans. They have high content of dissolved salt. Hence they are not the source of fresh water. Whereas water present in rivers, ponds and lakes are usually freshwater used for household purposes.

Answer: Option B. -> False
:
B

Some amount of water vapour is always present in the atmosphere. The abundance is, however, much higher during monsoon. Hence, the given statement is false.

Answer: Option C. -> Deposition of water droplets on the outer surface of a glass of cold water.
:
C
Fog formed during winter morning and deposition of water drops on the outer surface of cold water glass are both due to condensation of water vapour present in the air.
Steam rising from wet clothes while they are ironed is due to evaporation of water.
Evaporation is also responsible for drying up of clothes kept near a heater and drying of lakes during summer.

Answer: Option A. -> True
:
A
A large amount of water evaporates and gets converted into water vapour. The hot air rises up carrying water vapour along with it. As the air rises, the water vapour undergoes condensation and results in the formation of water droplets.
These water droplets combine together to form clouds. Once these clouds get heavy, they fall on the surface of the earth in the form of rain.

Answer: Option B. -> Drought
:
B
If it does not rain enough in a region, the soil continues to lose water by evaporation, transpiration, etc and the groundwater level keeps dropping. As the soil becomes dry, it is no more possible to draw underground water through pumps and wells. This results in a scarcity of water for general use and agriculture. Such a situation in which a region has a scaricty of water is called drought.