What is nonpoint source pollution and why is it hard to control?
comes from variety of places, may run together, hard to know where it comes from.
How is our groundwater replenished?
rain, snow, melted ice etc.
evaporation, transpiration and combustion
conversion, transitions and electrolysis
recycling. renewing, reusing
Describe infiltration
slow movement of water through soil and into rocks beneath earth's surface.
Describe an aquifer
where fresh water and salt water meet
the end point of mountain water
large underground reservoir of water, layers of rocks
multiple pumping systems in major cities
How is an aquifer like a sponge?
Both can hold water and both have permeable spaces
Describe water conservation
Protect and save water sources
What happens to water sources if the pumping is less than or equal to infiltration?
Water source is balanced and there is enough water.
What factors influence the recharge and quality of ground water?
Pollution, wasting water, overuse, contamination