What is a way we can help Earth by conserving water?

Pollution that comes from many sources

Pollution discharged from a single source

The process of removing the salt from salt water

These are built across rivers to control the river's flood

If water is safe to drink, it is

The ability of rock or soil to allow water to flow through it is called

Water that is found beneath Earth's surface in the spaces in sediment and rock formation is

The area of land that is drained by a river is known as a

Another name for the freshwater on Earths lands surface. Ex: lakes, rivers, streams etc.