The following computer model was created to illustrate how a watershed can be affected by human activities. What is the most likely reason for placing the farm land upstream from the factories? a. The water at the highest point of the river will have been impacted the least by human activities, so it should be the cleanest.b. Farms do not have a negative impact on watersheds, so they should be placed upstream.c. The factory puts pollution into the air, so it does not matter where the farm is located.d. The farm should be placed upstream because pesticides from the farm will end up in the river, which is beneficial for the factories downstream.
