How do trees improve water quality? a. tree roots anchor soil in place, preventing runoff. b. water is filtered as it passes through the root systems of trees. c. an adult tree can store nearly 250 gallons of water. d. all of the above

B is the correct answer

The Correct Answer Is : B. Water is filtered as it passes through the root system of trees. (just took the test)

explanation:

on disadvantage of hydroelectric power is the cost. another disadvantage of using hydroelectric power is finding a water source powerful enough to harvest hydroelectric power.

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.