Question

Explain the terms:

1. Sublimation
2. Transpiration
3. Precipitation
4. Infiltration

Answer 1

1.Sublimation:
Sublimation is conversion of solid to gas, without passing through the intermediate liquid phase. Ice sheets and ice caps from north and south poles, and icecaps on mountains, get converted into water vapour directly, without converting into liquid.
2.Transpiration:
Transpiration is the process by which plants release water vapour to atmosphere through small pores in leaves and stems.
3.Precipitation:
Due to change in wind or temperature, clouds combine to make bigger droplets, and pour down as precipitation(rain). Precipitation includes drizzle, rain, snow and hail.
4.Infiltration:
Some of the precipitated water moves deep into the soil. Then it moves down and increases the ground water level.