Question

The process of losing water from the leaves of plants is termed as

1. Surface evaporation
2. Water surface evaporation
3. Transpiration
4. Precipitation

Answer 1

Correct Answer - Option 3 : Transpiration

Explanation:

Transpiration: 

• It is the process by which water leaves the body of a living plant and reaches the atmosphere as water vapour.
• Transpiration is measured by phytometer.

Evaporation: 

• It is the process in which a liquid changes to the gaseous state at the free surface below the boiling point through the transfer of heat energy.
• Evaporimeter measures evaporation.

Evapotranspiration: 

• It is the process by which water is transferred from the land to the atmosphere by evaporation from the soil and other surfaces and by transpiration from plants.
• It can be measured by an instrument called a Lysimeter.

Precipitation:

• It is condensed water vapours that fall to the earth.
• Most precipitation occurs as rain, but also snow, hail, fog drip, graupel, and sleet.