The chief purpose of crop rotation is to check the loss of top soil

The correct answer is: C. by water erosion.

Crop rotation is a system of farming where different types of crops are grown in the same field in a planned sequence. This helps to prevent the loss of topsoil, which can be caused by water erosion. When the same crop is grown in the same field year after year, the soil can become depleted of nutrients and more susceptible to erosion. Crop rotation helps to replenish the nutrients in the soil and also helps to break up the soil, which makes it less likely to be eroded by water.

Option A: Weathering is the process of breaking down rocks and minerals by the action of wind, water,