Environmental Science module 12

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

groundwater

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

What percentage of the ocean pollutions come from oil spills?

5%

What is the freshwater available beneath Earth's surface in rock formations and sediments called?

Groundwater

________________________ occurs when pollutants are discharged from various sources that are unidentifiable.

Nonpoint-source pollution

_______________________ 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

Water treatment is necessary to make water __________ and remove harmful elements.

Potable

What is an example of a permeable rock?

Sand Sandstone Limestone

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.

biomagnification

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

dam

The conversion of salt water into fresh water is _________________________.

desalination

The ability to hold water is referred to as _________________________.

permeability

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

An artificial lake created by a dam is a(n) _________________________.

reservoir

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

river system

Fresh water that is available in rivers, lakes, wetlands, and streams is considered ____________________________.

surface water

Physical, chemical, and biological agents that degrade the quality of water is _______________________.

water pollution

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

watershed