Which of the following is an example of a nonpoint source of freshwater pollution?

a.) pesticide runoff from farm fields
b.) leaking toxic waste landfill
c.) sewage treatment plant
d.) factory waste piped into a stream

A.) pesticide runoff from farm fields

Freshwater pollution can be defined as the contamination of inland water with substances that affect its natural use and it can be caused by chemicals, petroleum, fecal waste, sediments and fertilization. Thus, non-point pollution is the process where pollution result from many diffuse sources such as agricultural areas which drain into the wind-borne debris or rivers.

option c is the correct answer.