Population Growth and Resource Consumption
What is the contamination of earth's land, water or air called?
Pollution
Rain or another form of precipitation that is more acidic than normal, caused by the release of molecules of sulfur dioxide and nitrogen oxide into the air.
Acid Rain
Anything humans use that occurs naturally in the environment.
Natural Resource
The water and human wastes that are washed down sinks, showers, and toilets
Sewage
What is the breaking down of and changing of rocks as a result of the environment?
Weathering
What is the point when the number of humans grows beyond what the available resources can support called?
Overpopulation
Pollutants that are released into the air.
Emissions
The removal of forests to use the land for other reasons.
Deforestation
Most ocean pollution is related to _____________ ______________.
Human Activities
What is the transportation of sediments broken down from weathering called?
Erosion
A rate of change that increases more and more rapidly over time.
Exponential Growth
A form of oxygen that has three oxygen atoms in each molecule instead of the usual two; toxic to organisms where it forms near Earth's surface.
Ozone
The advance of desert-like conditions into areas that were previously fertile
Desertification
The practice of raising fish and other water-dwelling organisms for food is called ______________.
Aquaculture
What is the dropping off of sediments that have been weathered and eroded called?
Deposition
The practice of using less of a resource so that it can last longer
Conservation
A specific, identifiable pollution source
Point Source
An area in which water covers the soil for all or most of the year
Wetland
When heat negatively affects bodies of water, it is called _______________ _______________.
Thermal Pollution
What type of weathering includes the breaking down of rocks into sediments without changing their composition?
Physical Weathering
The practice of allowing renewable resources time to recover and replenish.
Sustainable Use
A widely spread source of pollution that is difficult to link to a specific point of origin.
Nonpoint Source
Name four different layers of soil
Bedrock, Litter, Subsoil, Topsoil
Earth's water is a renewable resource, but fresh water is a ________________ resource.
Limited
What type of weathering includes the altering of rocks as a result of exposure to different substances?
Chemical Weathering