freshwater found on earths surface is called
surface water
The 2 types of water found on earth are
Fresh and Salt water
Most fresh water is found where?
Frozen ice caps and glaciers
What is the water cycle?
Evaporation
Condensation
Precipitation
what is an area drained by a river called?
Watershed
What is porosity in regards to groundwater?
the percentage of the total volume of a rock that has spaces.
what is permeability in regards to groundwater?
the ability of rock or soil to allow water to flow through
what can negatively effect a recharge zone?
Pollution
Buildings or parking lots
what is a recharge zozne?
The most pressing environmental issue in the world today is_____________
Access to clean water
How is water used on a global scale?
Residentially
Industrially
Agriculturally
Irrigation
Water that is safe to drink is called
Potable water
How is water used in industry?
Manufacturing
Generate Power
Dispose of waste.
What are the organisms that can cause illness or disease called?
pathogens
What are the negative effects of damming a river?
displacement of people
Lack of nutrients downriver
destruction of ecosystems
structural failure of the dam
why are desalination plants not a viable option?
Too expensive
how is water conserved in industry?
Using saltwater when possible
Government incentives
How is water being conserved in agricultural?
drip irrigation
hydroponic gardening
what is point source pollution
pollution discharged from a single source
What is biomagnification?
when harmful chemicals are stored in an organism and are passed through the foodweb to each other.
What are the basic steps of sewage water treatment?
removal of solids and sludge as it settles.
Aeration
Addition of bacteria
Chlorination
what does artificial eutrophication do to an ecosystem?`
a rise in nutrients causes rapid growth of algae
Lowers the amount of oxygen in the water causing organisms to die
what is nonpoint-source pollution?
runoff pollution that can come from many different sources
What is thermal pollution and what does it do to the water?
When powerplants put warm water back into the environment and it causes the amount of dissolved oxygen to be reduced causing organisms to die.