Question

overpopulation can affect the natural environment by
limiting land available for crops.
lowering the standard of living.
causing the destruction of forests.
worsening sanitation in cities.

Explanation:

Overpopulation leads to more demand for space and resources. Forests are cleared for housing, agriculture, and other human - related activities, which directly affects the natural environment. Limiting land for crops mainly affects agriculture, lowering the standard of living is more about social - economic aspects, and worsening sanitation in cities is an urban issue rather than a direct natural environment impact compared to forest destruction.

Answer:

causing the destruction of forests.