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Mr. Vaughan Unit 8

Unit 8 - Human Impact on the Environment

water pollution contamination of water by waste matter or other material that is harmful to organisms that are exposed to the water
point-source pollution pollution that comes from a specific site
nonpoint-source pollution pollution that comes from many sources rather than from a single, specific site
thermal pollution a temperature increase in a body of water that is caused by human activity and that has a harmful effect on water quality and on the ability of that body of water to support life
eutrophication an increase in the amount of nutrients, such as nitrates, in a marine or aquatic ecosystem
potable suitable for drinking
reservoir an artificial body of water that usually forms behind a dam
urbanization an increase in the proportion of a population living in urban areas rather than rural areas
land degradation the process by which human activity and natural processes damage land to the point that it can no longer support the local ecosystem
desertification the process by which human activities or climate changes make arid or semiarid areas more desertlike
deforestation the removal of trees and other vegetation from an area
greenhouse effect the warming of the surface and lower atmosphere of Earth that occurs when water vapor, carbon dioxide, and other gases absorb and reradiate thermal energy
air pollution the contamination of the atmosphere by the introduction of pollutants from human and natural sources
particulate a tiny particle of solid that is suspended in air or water
smog air pollution that forms when ozone and vehicle exhaust react with sunlight
acid precipitation rain, sleet, or snow that contains a high concentration of acids
air quality a measure of the pollutants in the air that is used to express how clean or polluted the air is
conservation the wise use of and preservation of natural resources
stewardship the careful and responsible management of a resource
Created by: dougteach65


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