WORLD HISTORY

Detailed explanation-1: -slash-and-burn agriculture, method of cultivation in which forests are burned and cleared for planting.

Detailed explanation-2: -Slash and burn is a method of farming that involves clearing land by destroying and burning all the trees and plants on it, farming there for a short time, and then moving on to clear a new piece of land. Traditional slash and burn farming methods have exhausted the soil.

Detailed explanation-3: -In slash and burn agriculture, the farmers cut down the trees of the forest and burn the plant remains and the land is used for farming. After cultivation, the area is left alone for several years so as to allow its recovery. The farmers then move on to other areas and repeat this process.

Detailed explanation-4: -Slash and burn agriculture is also called as jhum cultivation. It is the process of growing crops in which the land of trees and vegetation are first cleared and then burned thereafter. The burnt soil contains potash which increases the nutrient value of the soil. Thus, the correct answer is ‘Jhum cultivation.