Concept:Jhum cultivation is a traditional farming method where land is cleared by cutting and burning vegetation to grow crops in the ash-enriched soil.
Explanation:In Jhum cultivation, farmers first cut down trees and shrubs in a forest patch.
After drying, they burn the vegetation, which releases nutrients into the soil.
Crops are then planted directly in the nutrient-rich ash for one or two seasons.
Once the soil fertility declines, the plot is abandoned and a new area is cleared.
This practice is also known as "slash and burn" agriculture and is common among indigenous communities in tropical regions.
It does not rely on chemical fertilizers or pesticides, relying instead on natural regeneration.
Overuse can lead to deforestation and soil degradation.
Answer:Slash and burn agriculture (Option B)