Water boils at:
10o C
100o C
1000o C
0o C
An artificial lake where water is stored is called:
Reservoir
Reservice
Reserver
Reserpine
Which statement is true?
Water is not scarce.
Water is scarce.
We should waste water.
Water should be stored in dirty containers.
Pollution of water bodies can be controlled by:
treatment of sewage waste before disposal
releasing industrial effluents into water bodies
dumping waste in water bodies
throwing plastic into water bodies
Which is the main source of fresh water on earth?
Oceans
Seas
Rivers
Rain
What percentage of Earth’s surface is covered with water?
1/4 th
2/3 rd
1/3 rd
3/4 th
What describes the continuous movement of water?
Water conservation
Water cycle
Water preservation
Water harvesting
The temperature at which ice melts is called the :
Melting point
Freezing point
Boiling point
Drying point
Which are the main water pollutants?
Loudspeaker
Smoke
Domestic sewage
Natural fertilizer
The process of water changing into vapour is called:
Evaporation
Condensation
Precipitation
Collection
