A source of pollution that comes from one, identifiable place is what type of pollution?
1. Point source of pollution
2.Nonpoint source of pollution

Point sources of pollution

Explanation:

The U.S. Environmental Protection Agency (EPA) defines point source pollution as “any single identifiable source of pollution from which pollutants are discharged, such as a pipe, ditch, ship or factory smokestack.” Factories and sewage treatment plants are two common types of point sources.

they float because they are less dense than the water itself

something denser than water, like a rock, will sink to the bottom

here's your

hope it