Which of the following activities would have the greatest impact on the amount of dirt, oil and other contaminants added to the streams and lakes near a large urban area? a. construction of a large mall and parking lot b. preservation of parks and other green spaces c use of rain barrels to collect water for later use d. use of permeable pavement systems

Option A

Explanation:

The construction of large mall and parking lot will pollute the atmosphere as well as the  impacts the environment. The rest of the options have less impact on the environment.

The use of permeable pavement system is used to filter the water. It helps in cleaning the water and used in parking lots, parks et cetera.

The preservation of the green parks and rain barrels to collect water and use it afterwards is helpful for the environment.