Environmental concerns Flashcards
Nonrenewable resource
Limited in supply
Amount of land
Fossil fuels
Resource
Biotic or abiotic factor that helps meet basic needs
Renewable resource
Not limited
Water
Solar energy
Plants and animals for food
Pollution
Side effect of resource use
Coastal pollution
Toxic substances traveling downstream to sea
Desertification
Conversion of semi arid land to desert
Can result from overgrazing if livestock
Deforestation
The removal of trees
Causes loss of soil nutrients and fertility
Irrigation
Intensive agriculture
Aquifers
Hold 1000 times as much water as falls on land as precipitation each year
Aquaculture
Growing aquatic organisms
Greenhouse gases
Gases that trap heat in the atmosphere
Carbon dioxide, methane
Saltwater intrusion
Water lowering to the point to cause seawater backing up into streams and aquifers
Reduces the supply of fresh water along the coast
Fossil fuels
Fuels that are derived from the compressed remains of plants and animals that died millions of years ago
Minerals
Nonrenewable raw materials in earth’s crust that can be mined and used by humans
CFCs
Chlorofluorocarbons
Chemical which creates holes in the ozone layer