A body of rock or sediment that stores groundwater and allows the flow of groundwater.
Aquifer
The area subject to flooding during a given number of years according to historical trends.
Floodplain
water pollution that does not have a specific point of origin; "You cannot easily point to it.
non-point source pollution
A chemical intended to kill insects and other organisms that damage crops.
Pesticide
The upper level of the saturated zone of groundwater
water table
micture of salt and fresh water
Brackish Water
Does not contain any salt and can be rivers, lakes, streams,ponds, and wetlands
Freshwater
pollution that enters a body of water from a specific source; "You can easily point to it"
point source pollution
The area of land drained by a river and its branches.
River basin
an area of land that drains all the streams and rainfall to a common outlet
watershed
the amount of water in a stream that passes a given point in a period of time
Discharge
the large circular surface current pattern found in each ocean
Gyre
Ability of rock or soil to allow water to flow through it
permability
water that flows over the ground surface rather than soaking into the ground
Runoff
zone where all open spaces in sediment and rock are completely filled with water
zone of saturation
excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.
Eutrophication
the process by which surface water enters the soil
Infiltration
the volume of open spaces in rock or soil
porosity
The amount of energy required to raise the temperature of 1 gram of a substance by 1 degree celcius
specific heat
Attraction between molecules of the same substance
cohesion
The gradual sinking of land. The condition may result from the removal of groundwater or oil, which is frequently instrumental in supporting the overlying rock and soil.
land Subsidence
The gradual sinking of land. The condition may result from the removal of groundwater or oil, which is frequently instrumental in supporting the overlying rock and soil.
land Subsidence
A chemical intended to kill insects and other organisms that damage crops.
pesticide
Evaporation of water from the leaves of a plant
transpiration
An attraction between molecules of different substances
adhesion