The process of changing of water into its vapour is called .................... .
evapouration
5
The process of changing water vapour into water is called ....................
Condensation
15
No rainfall for a year or more may lead to .................... in that region.
Drought
15
Excessive rains may cause .................... .
Flood
15
Water evaporates into air from oceans, rivers and lakes but not from the soil. ( )
False
15
Water vapour condenses to form tiny droplets of water in the upper layers of air where it is cooler. ( )
True
15
Fill in the blanks selecting words from the following list snow, rain, clouds, vapour, evaporation, transpiration. Water, as ............. goes into atmosphere by the processes of ............. and ............. and forms ............., whi
15
Water vapours enter the air (or atmosphere) by which of the following processes? (a) Evaporation of ocean water (b) Transpiration occurring in plants (c) By evaporation of sweat of animals (d) All of the above
15
What percentage of water is readily available to us? (a) 3% (b) 97% (c) 60% (d) 40%
