consevation - the careful use of earth materials of reduce damage to the enviorment  , reclamation - a process in which mined land is restored with soil and replaced with vegetations , natural resource - part of the environment that supplies material useful or necessary for the survival of living things, coral bleaching - the loss of color in corals that occurs when stressed corals extract the colorful algae that lives in them , air pollution - the contamination of air by harmful substances including gases and smoke, climate - long-term pattern of weather in a water particular areal, deforestation - the removal of a large areas of forest for human purposes , urbanization - the development of towns and cities on previously natural areas , photochemical smog - air pollution that forms the interaction between chemicals in the air and sunlight , aquifer - an area of preamble sediment of rocks that hold significant amounts of water, pollution - the contamination of the environment with substances that are harmful to life, reforestation - process of planting trees to trees that have been cut or burned down, greenhouse effect - the natural process that occurs when certain gases in the atmosphere the readate , greenhouse gases - an gas in the atmosphere that absorbs earth's outgoing infrared radiation , global warming - an increase in the average temperature of earth's surface , particulate mater - the mix of both solid and liquid particles in the air , acid precipitation - preparation that has lower PH than that of normal rainwater , climate change - any change in earth climate including global trends in warming, cooling, perception, wind direction and others ,

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