ch 11 Flashcards
surface water
is fresh water on earth land surface
River system
as screams and rivers move across the land, they form a flowing network of water
watershed
The area of land that is drained by a river
ground water
water that is found beneath earths surface in the spaces in sediment and rock formation
Aquifer
an underground formation that contains ground water
porosity
is the percentage of the total volume of a rock that has space pores
permeability
The ability of rock or soil to allow water to flow
recharge zone
and area of earths surface from which water pre-coats down into an aquifer
potable
Most water must be treated to make or safe to drink
pathogen
found in polluted water, but they can also occur naturally and ground water
dam
are built across rivers to control the rivers flow
reservoir
when a river is damned, in article lake, is formed behind the dam
desalination
is the process of removing salt from salt water
water pollution
Is the introduction of chemical, physical, or biological agents into water that degrade water quality and harm the organisms that depend on the water
Point-source pollution
which is pollution discharged from a single source
Non-point source solution
also known as runoff pollution, comes from many different sources that are often difficult to identify
Waste water
is water that contains waste from homes or industry
artificial eutrophication
fertilizer from forms, lawns, and gardens is the largest source of nutrients that cause artificial eutrophication
thermal pollution
can occur when power plants and other industries use water in their cooling systems and then discharge the warm water into a lake or river
biomagnification
each organism stores the pesticide and it’s tissue in the concentration of the pesticide that is passed on to the next organism in the food chain increases
