Question

1. what is the difference between point sources and nonpoint sources of pollution?

a. point sources come from a single location, while nonpoint sources are diffuse
b. point sources are harmless, while nonpoint sources are dangerous
c. point sources are small, while nonpoint sources are large
d. point sources are natural, while nonpoint sources are man - made

Explanation:

Point - source pollution is pollution that comes from a single, identifiable source. For example, a factory's smokestack or a sewage treatment plant's discharge pipe. Non - point source pollution is diffuse and comes from many sources that are not easily identifiable. For example, runoff from agricultural fields (carrying fertilizers and pesticides) or urban areas (carrying oil, grease, and sediment).
Option b is incorrect because both point and non - point sources can be harmful. Option c is incorrect as the size is not the defining characteristic. Option d is incorrect as both can be natural or man - made.

Answer:

A. Point sources come from a single location, while nonpoint sources are diffuse