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