Question

multiple choice question
slash - and - burn cultivators were forced to move when their existing fields were invaded by ______ and the soils fertility was depleted.

• trees
• animals
• weeds
• pests

Explanation:

Slash-and-burn agriculture clears forested areas; over time, as soil fertility drops, native trees begin to regrow and invade the cultivated plots, forcing farmers to move to new areas.

Answer:

trees