Question

what human activity contributes to air pollution?
○ construction
○ reforestation
○ habitat restoration
○ dam development

Explanation:

Construction activities generate dust, exhaust from heavy machinery, and construction material emissions, all of which release pollutants into the air. Reforestation and habitat restoration improve air quality by absorbing carbon dioxide, while dam development primarily impacts water systems and land use, not air pollution directly.

Answer:

construction