Question

In hot summer day, plant cooling occurs due to

• A. Transport of water from root to all parts of the plants.
• B. Loss of liquid water
• C. Water loss from entire plant
• D. Loss of water vapour from foliar surface

Answer 1

The correct option is D Loss of water vapour from foliar surface

In hot summer days when loss of water vapour occurs from foliar surface because these are the main site of water loss or transpiration and directly exposed to sunlight.

There is no effect on cooling of plants due to transport of water from root to all parts of the plant or water loss from entire plant.