How does replacing grass with concrete and asphalt impact the frequency of floods?

Grass and soil absorb some rainwater, allowing it to soak into the ground. Concrete and asphalt are mostly impermeable, so more rain flows over the surface into drains and waterways, raising the risk and frequency of floods. Therefore, the correct choice is “The area cannot absorb rainwater, increasing floods.”

AI-written and checked against the verified answer.