Final answer:
Agricultural runoff is the source of pollution covered indirectly by the Soil and Water Resources Conservation Act but excluded from the Clean Water Act.
Step-by-step explanation:
The source of pollution covered indirectly by the Soil and Water Resources Conservation Act but excluded from the Clean Water Act is agricultural runoff.
Agricultural runoff refers to the water that carries fertilizers, pesticides, and other chemicals from agricultural lands into bodies of water like lakes, rivers, and streams.
While the Clean Water Act focuses on regulating point source pollution and establishing water quality standards, the Soil and Water Resources Conservation Act aims to address nonpoint source pollution, including agricultural runoff.
Learn more about Agricultural Runoff