How does bacteria like E. coli get in the water?

Where is most freshwater located?

What percent of water is fresh water?

What percent of water is salt water?

oil from cars on the road

sewage pipe leaking at wastewater treatment plant

factory dumping waste

fertilizer runoff

pollution that comes from one source

pollution that comes from many sources

trash on the beach

oil spill in the ocean

animal waste

fertilizers from a golf course

copper from water pipes

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