to maintain a clean environment .
They take regular samples from the rivers ans streams, and run a series of tests to see what contaminants are present.
River sources are the rain falling on high ground. Sometimes the runoff flows into streams that flow into rivers. Other times the streams run into lakes that outflow from the lakes is the source of the river. The Nile river is an example of a lake sourced river.
Databases and file streams.
they get their water from streams, snow, and rain
depends what the nfood sources are. and the species that live there.
Rivers, streams, lakes, wells and springs.
Rivers, streams, the Atlantic Ocean and other normal water sources.
Some sources of freash water would be lakes, streams, ponds, rivers, etc.........
grassy plains by streams rivers and lakes for their water sources
Silt and clay.
They drink freshwater from streams and other water sources.
The correct answer is silt and clay.