How did the Olmec civilization's use of slash-and-burn agriculture affect the environment?
A. It drained nutrients from the soil.
B. It helped forests grow quickly.
C. It flattened out steep hills and mountains.
D. It redirected rivers toward farmland.

A. It drained nutrients from the soil

Explanation:

The Olmec civilization are one of the oldest known Mesoamerican civilization as they dwelled in the tropical lowlands in modern day Veracruz of Mexico.

They used the slash and burn method of agriculture which had an adverse effect on the soil as it robbed it of nutrients, which in time made the land less fertile.

Therefore, the Olmec civilization's use of slash-and-burn agriculture affected the

environment because it drained nutrients from the soil