OBJECTIVE FORESTRY

Detailed explanation-1: -In terrace farming, a terrace is a piece of the sloped plane that is cut into a series of successively receding platforms, that resemble steps. This prevents rain from washing away soil, hence preventing soil erosion. Thus the correct answer is option C.

Detailed explanation-2: -contour farming, the practice of tilling sloped land along lines of consistent elevation in order to conserve rainwater and to reduce soil losses from surface erosion.

Detailed explanation-3: -Terrace farming or step farming is commonly done on the slopes of the hills. It is defined as the farming in which the slopes of the hills or mountains are cut in the form of steps so that the farmer gets enough space for cultivating various kinds of crops.