In towns and cities, water is purified in a:
Filter
Purification plant
Reservoir
Dams
The process by which a substance change from solid state to liquid is called:
Melting
Freezing
Evaporation
Condensation
What is meant by potable water?
Water which is not fit for drinking
Water which is salty
Water which is not purified
Water which is fit for drinking
The gaseous form of water is:
Vapour
Ice
Clouds
Sea water
What is essential for the growth of a plant?
Water
Chemicals
Nitrogen
Water vapor
What do we need for survival?
Car
House
Clothes
Condensation happens when:
Liquid changes to solid
Solid changes to liquid
Liquid changes to gas
Gas changes to liquid
Freezing is:
Change of liquid to solid
Change of solid to liquid
Change of liquid to gas
Change of solid to gas
Which is the main source of water on earth?
Oceans
Seas
Ground water
Rain water
Clouds are formed by:
Water getting evaporated
Water rising in the air
Water turning into ice
Water droplets joining together