Which of these was NOT a product of slash and burn agriculture?

Question

Quizplus · Accepted Answer

Slash and burn agriculture typically involves a cycle of clearing and burning land for cultivation, followed by moving on to a new area once the soil becomes depleted. This practice does not lend itself to permanent settlements, as people would need to continually migrate to new land to maintain their agricultural practices. However, it can temporarily increase soil fertility and crop outputs before eventually leading to soil exhaustion.

Which of These Was NOT a Product of Slash and Burn