Vocab
Bodies of water on Earth's surface change from a liquid to a gas due to heat.
Evaporation
Humans can only live this amount of days without water.
Couple (approximately 3 days)
This step: Clean water is stored until it is distributed for use.
Storage
The increase in the concentration of a pollutant in a food chain.
Biomagnification
Built to control water through placement of a blockage of earth, rock and/or concrete across a stream or river.
Dam
When a pollutant concentration increases within an organism.
Bioaccumulation
Nearly 97% of the world's water is in this form.
Salt water
This step: Pathogenic microorganisms are killed by using some form of disinfectant, such as chlorine, UV or ozone treatment.
Disinfection
This is when man made or caused elements are added to water causing reactions like a decrease in oxygen or an increase in plankton.
Eutrophication
This is an underground water formation containing groundwater.
Aquifer
Freshwater that is located underground in sediment and rock formations.
Groundwater
Billions of years
This step: Any remaining small solid particles or bacteria are removed with a sand filter or a series of filters.
Filtration
5
This is an artificial channel for conveying water, typically in the form of a bridge across a valley or other gap.
Aqueduct
The uppermost layer of ground that is saturated in water.
Water Table
The amount of water the adult human body is composed of.
60% water
This step: The floc separates from the water as it sinks to the bottom. Air is used to push the floc to the top of the water so it can be removed.
Sedimentation
This act has requirements for prevention of, preparedness for, and response to oil discharges at specific non-transportation-related facilities.
1990 Oil Pollution Act
How are watersheds and rivers related.
The water flowing through a watershed will eventually drain into a river system.
A pollutant that comes from many different sources and therefore difficult to identify.
Non-point source
This amount of water is needed to grow a day's worth of food for a family of four.
6800 gallons
This step: Special compounds are added that cause particles to clump together.
Coagulation
This is a U.S. federal law that regulates the discharge of pollutants into the nation's surface waters, including lakes, rivers, streams, wetlands, and coastal areas.
Clean Water act of 1972
What is the relationship between ground and surface water.
Surface water will percolate into the ground, becoming groundwater.