For a standing crop, the consumptive use of water is equal to the depth of water A. Transpired by the crop B. Evaporated by the crop C. Transpired and evaporated by the crop D. Used by the crop in transpiration, evaporation and also the quantity of water evaporated from adjacent soil

The correct answer is: C. Transpired and evaporated by the crop.

Transpiration is the process by which plants release water vapor into the atmosphere through their leaves. Evaporation is the process by which water changes from a liquid to a gas. Both transpiration and evaporation are important for plant growth, as they help to

cool the plant and transport nutrients and minerals from the roots to the leaves.

The consumptive use of water is the total amount of water that is used by a plant, including both transpiration and evaporation. It is a measure of the water that is lost from the plant and the soil, and it is an important factor in determining the amount of water that needs to be applied to crops.

Option A is incorrect because it only considers transpiration. Option B is incorrect

because it only considers evaporation. Option D is incorrect because it includes water that is evaporated from adjacent soil, which is not part of the consumptive use of water.