Answer: Option B. -> Evaporation
:
B
Wet clothes haswater in them. When placed near a heater, the water in the clothes evaporate. This causes the wet clothes to dry up.
Condensation is a reverse process where water vapor converts to liquid water.
In the process of freezing, liquid water converts to solid ice.
The process of boiling also converts liquid water to water vapour. However, this is achieved when a large amount of heat is supplied. An example of boiling is when you heat water on a gas stove.

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, therebyincreasing the level of ground water.
The figure given below shows infiltration of water.

Answer: Option D. -> transpiration
:
D
Transpiration is the process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapour and is released to the atmosphere. It is essentially evaporation of water from plant leaves.

Answer: Option D. -> Lighting of fire
:
D
Among the given options, except for lighting fire, everything requires water.
Water is a very good fire extinguisher i.e., it puts off the fire rather lightingit.
Making paper is a water-intensive industrial process.
Plants also require water for survival and growth.
We require water for bathing.

Answer: Option C. -> Flood
:
C
Flood causes a sudden rise of water level in a region. Itcauses 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.

:
Definition: 1 Mark
Occurrence: 2 Mark
Drought is considered as a deficiency in rainfall or precipitation over an extended period, usually a season or more, resulting in a water shortage causing adverse impacts on vegetation, animals andpeople.
If it does not rain for a longer period of time then (1) the water level in rivers, lakes and ponds go down, some of them may even dry up. (2) The groundwater also becomes scarce and drops drastically. This may lead to drought.

:
Clouds aremade up of droplets ofwater. Normallycloudsare thin andallowa large portion of the light to pass through them sothey appearwhite.Rain clouds have largewater drops which do not allow light to pass through them. This is the reasonthe clouds turndark before it rains.

:
Entire process: 5 Marks
Water Cycle is the transportation of water from the land to the sky and back.Theprocesses that make up the water cycle are as follows:
●Condensation - It is the process in which water changesfrom gaseous state to liquid state.
●Infiltration is an important process in whichrainwater soaks into the ground.
●Much of the water that returns to earth's surface as precipitation runs off from the surface of the land, and flows down the hill into streams, rivers, ponds and lakes.
●Evaporation - The process where a liquid, in this case, water, changes from its liquid state togaseous state.
●Rain - When water droplets in a cloud are heavy enough,theycome down in the form of rain.
●Transpiration - Plants release water vapour into the air through the process of transpiration.

:
We draw water from rivers, springs, ponds, wells orhand pumps. These are all sources of freshwater.

:
a) 2 Marks
b) 2 Marks
c) 1 Mark
a)The moist air coming out from mouth condenses on the glasses and makes them wet. This makes the cleaning process easy.
b)The cool surface of the cold bottle cools the air around it and the water vapours of the air condense on the surface of the bottle. This is the reason of the water around a bottle of cold water.
c) When air is cooled to the dew point, fog droplets form. When the air temperature is the same as the dew point temperature, condensation occurs on tiny particles floating in the air.