A farmer is evaluating four methods of preventing farm runoff from reaching the nearby streams and rivers. Which method would be best for the farmer to use? A
Build concrete canals on the farm to help water drain into a nearby lake.
B
Graze animals on the sides of hill so that runoff flows more quickly.
C
Develop wide ditches filled with plants to give the runoff more time to soak into the ground.
D
Remove trees and grasses from the sides of rivers and replace them with barriers made of rocks. plz help