Earth Science - Hydrology B
Terms in this set (16)
is a scale for showing the quality of an environment by indicating the types of organisms present in it. It is often used to assess the quality of water in rivers.
is any area of land where precipitation collects and empties out into a common outlet, such as into a river, bay, or other body of water
an increase in the amount of nutrients, such as nitrates in a marine or aquatic ecosystem causing plant/algae and bacteria over growth reducing the dissolved oxygen.
occurs in coastal freshwater aquifers when the different densities of both the saltwater and freshwater allow the ocean water to intrude into the freshwater aquifer.
nonpoint source pollution
pollution that comes from many sources rather than from a single specific site; an example is pollution that reaches a body of water from streets and storm sewers
suitable (fit) for drinking
an area in which water travels downward to become part of an aquifer
the area of land which drains from all the watersheds into a central flow of water. Normally bounded by higher elevations draining to a valley.
Freshwater from precipitation and melting ice that flows on the earth's surface (being possibly polluted) into nearby streams, lakes, wetlands and reservoirs.
the measure of NaCl (Sodium Cloride) in water (dihydrogen monoxide)
the sinking of regions of the ground surface with little or no horizontal movement
is the harmful release of heated liquid into a body of water or heat released into the air as a waste product
physical, chemical and biological characteristics of water
upper surface of the zone saturation, in which all available pores in the soil and rock in the earth's crust are covered in water
Land area that delivers water, sediment, and dissolved substances via small streams to a major stream (river). Many of these make a river basin.
A deep hole or shaft sunk into the earth to obtain water, oil, gas, or brine.
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