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 tool that identifies the types of trash entering bodies of water.
C. A device that measures the concentration of pollutants in a specific area of the ocean.
D. A tool that identifies the types of chemicals that transpire from plants.
