The ancient slash-and-burn agricultural practice in Madhya Pradesh, in which farmers clear a piece of land and grow grains and other food crops, is locally known by what name?

In the context of the Indian agricultural system, which of the following cash crops is widely recognized by the moniker 'Golden Fibre' and is predominantly cultivated in the high rainfall states of West Bengal, Bihar, and Assam?

In the context of the Indian agricultural system, what is the specific dual utility of leguminous pulse crops such as Gram and Moong?