Acid rain is precipitation that has become acidic over time. It is caused by pollution from human activities. Acid rain is harmful to aquatic environments and forests. Which of these could be used to determine the amount of acid rain that might occur in the hydrologic cycle of an area?
A. A device that measures the amount of chemicals released into the air by a factory. B. A device that measures the concentration of pollutants in a specific area of the ocean.
C. A tool that identifies the types of trash entering bodies of water.
D. A tool that identifies the types of chemicals that transpire from plants.