Correct Answer: hot, dry, and windy condition

Solution : The correct answer is hot, dry, and windy conditions .

Transpiration is the rate of loss of water by the aerial parts, such as leaves, flowers, and stems. About 97% to 98% of the water taken up by the roots of the plant is lost due to transpiration, and guttation. The rate of transpiration is higher in hot, dry, and windy conditions and lower in cold, and humid conditions. Hot and dry winds increase the rate of formation of water vapours, and evaporation, which, in turn, increases the rate of transpiration.