How does the construction of dams positively affect natural resources?
A) by providing water for irrigation and restoring trees to areas where forests once existed
B) by creating reservoirs, preventing flooding, and renewing destroyed ecosystems
C) by preventing flooding, creating reservoirs, and providing water for irrigation D) by renewing destroyed ecosystems and restoring trees to areas where forest once existed

A positive effect of the construction of a dam could be:

C) by preventing flooding, creating reservoirs, and providing water for irrigation

because all the other options have an aspect of inaccuracy to them.

Trees have to be cut down to make a dam.

Explanation:

C is the most accurate and logical option according to the benefits the dam should provide.

a lot of people sadly don't know the best way to learn is cheating off of your friends or this amazing thing called google