EVS

Which is the largest source of water on earth?

• Rain

• Ocean

• River

• Sea

Which is the purest form of natural water?

• River

• Pond

• Stream

• Rain

The water that sweeps into the ground when it rains.

• Underground water

• Rain water

• Stream

• Fresh water

Which are the factors mentioned below affects evaporation.

• Water evaporates faster when the weather is cold

• Water evaporates faster when the temperature is high

• Evaporation is faster on a cloudy day

• Water evaporates faster when the exposed surface is large

The change of water into water vapour due to heating is called evaporation

• Condensation

• Precipitation

• Evaporation

• Saturation

Which method is used to draw underground water in places where there is electricity

• tube well

• hand-pump

• well

Water evaporates faster when the weather is

• cold

• wet

• windy

• None of these

The process of changing of water vapour into water on cooling is called

• evaporation

• condensation

• Precipitation

• None of these

What is formed when water vapour condenses on cold objects like grass in the fields?

• clouds

• fog

• dew

• snow

What happens when water vapour condenses on dust particles?

• clouds are formed

• dew is formed

• frost is formed

• fog is formed