Question

population size and structure
quiz complete
which human activity can produce disruption of fish breeding habits, increase in mosquito population, and flood control?
construction of dams to produce electricity
habitat destruction that decreases beaver population
increased erosion due to improper farming techniques
overfishing in artificial lakes

Explanation:

Construction of dams can create large bodies of still water. This disrupts the natural flow - based fish breeding habitats. Mosquitoes breed in still water, so the dam - created still water can lead to an increase in mosquito population. Dams are also used for flood control as they can regulate water flow. Habitat destruction that decreases beaver population mainly affects the beaver's ecosystem role (like water management through dam - building by beavers). Increased erosion due to improper farming techniques affects soil quality and water turbidity but not in the way described in the question. Overfishing in artificial lakes mainly impacts fish population numbers directly rather than creating the complex set of issues (fish breeding disruption, mosquito increase, flood control - related) mentioned.

Answer:

construction of dams to produce electricity