The correct answer is: c) Jhum cultivation.
Jhum cultivation is a traditional form of shifting cultivation practiced in the hills of North-East India. It is also known as slash-and-burn agriculture or shifting cultivation. In jhum cultivation, a patch of forest is cleared and burned, and the ashes are used to fertilize the soil. Crops are then grown on the land for a few years, after which the land is abandoned and allowed to regenerate. Jhum cultivation is a sustainable form of agriculture, but it can lead to deforestation if it is not practiced carefully.
Terrace farming is a type of agriculture that involves building terraces on hillsides to create level surfaces for growing crops. Terrace farming helps to prevent soil erosion and makes it possible to grow crops in areas that would otherwise be too steep.
Intensive cultivation is a type of agriculture that involves using high levels of inputs, such as fertilizer and pesticides, to produce high yields. Intensive cultivation can be very productive, but it can also damage the environment.
Plantation agriculture is a type of agriculture that involves growing crops on large areas of land using machines and hired labor. Plantation agriculture is often used to grow crops for export, such as coffee, tea, and bananas.