Concept:Conservation of tropical rainforest involves protecting trees and maintaining the ecosystem. Deforestation destroys the forest.
Explanation:Agroforestry is a practice that combines trees with crops, so it helps conserve the forest.
Crop rotation maintains soil fertility and reduces the need to clear new forest land.
Shifting, when properly controlled, can allow the forest to regenerate after a period of rest.
Deforestation, however, means cutting down and removing trees, which is the opposite of conservation.
Therefore, it is the practice that tropical rainforest should not be conserved by.
Answer:B. Deforestation.