science11

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The freshwater available beneath Earth's surface in rock formations and sediments is

ground water

occurs when pollutants are discharged from various sources that are unidentifiable

non point source pollution

The ability to hold water is referred to as

permeability

The discharging of warm water into bodies of water after using it for cooling which can affect oxygen levels for aquatic life is

thermal pollution

Underground formations in which groundwater accumulates is a(n)

aquifer

The overconcentration of nutrients in bodies of water due to human activities, such as farming or cleaning products is

artificial eutrophication

When pollutants increase as you move up a food chain or food web, ___________________ is occurring

biomagnifcation

A structure built across a river to control its flow is a(n)

dam

occurs when a pollutant is discharged from a single source, such as a leaking oil tanker, a factory, or sewage treatment plant.

point source pollution

The percentage of a rock's total volume that has pores and spaces is referred to as its

porosity

Once water has been treated and the harmful elements have been removed, it is considered

potable

The point at which water from Earth's surface reaches down into an aquifer is called a(n)

recharge zone

A large flowing network of streams and rivers moving across a land area is a

river system

Water that may contain toxic substances and biodegradable material from industries or homes that is sent to treatment plants to make it safe for return to a lake or river is

waste water

Land area that is drained by a river is a(n)

watershed


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