Question

which best describes the following impacts: water storage, clean energy, and flood prevention?○ positive impact of a density-dependent limiting factor○ positive impact of a hurricane○ positive impact of beavers in an ecosystem○ positive impacts of dams on society

Explanation:

1. Density-dependent limiting factors (e.g., resource scarcity) typically have negative population-regulating effects, not the listed benefits.
2. Hurricanes are destructive natural disasters with no positive impacts like clean energy or flood prevention.
3. While beavers create dams with some similar local ecosystem effects, their scale does not align with the broad societal framing of "clean energy" and large-scale flood prevention.
4. Human-built dams are specifically engineered to store water for use, generate hydroelectric (clean) energy, and control river flow to prevent floods, directly matching all three impacts.

Answer:

positive impacts of dams on society