The correct answer is c) Jhum.
Jhum is a traditional farming method practiced in the hills of Northeast India, including Mizoram. It is a form of shifting cultivation, in which a piece of land is cleared and cultivated for a few years, then abandoned and allowed to regenerate for several years before being cleared again. This method of farming is sustainable in the long term, as it allows the land to recover and regenerate its nutrients.
Contour farming is a method of farming that helps to prevent soil erosion. It involves planting crops on the contour, or along the lines of the land, rather than up and down the slope. This helps to keep the soil in place and prevents it from being washed away by rain or wind.
Integrated farming is a method of farming that combines crop cultivation with animal husbandry and aquaculture. This helps to create a more sustainable system, as the waste from one type of farming can be used to fertilize the other types.
Organic farming is a method of farming that does not use synthetic pesticides or fertilizers. It relies on natural methods, such as crop rotation and composting, to maintain soil fertility and control pests.
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