Can anyone please help with these two questions? Thanks!
Which human activity has the most impact on the quality of water of a stream?
A: Increasing the chemical we throw in the water.
B: Releasing laundry detergent into our streams.
C: Not using fertilizers near the stream
D: Water that has been heated and cooled.

How does the industrial and agricultural activities affect our watersheds?
A: By allowing the water cycle to evaporate the water.
B: By allowing pollutants to seep through our soil to our groundwater.
C: By burning fossil fuels
D: All of the above.