| A | B |
|---|
| agriculture | another name for farming |
| monoculture | planting a field with one crop |
| green revolution | the use of chemical fertilizers and monoculture |
| renewable resource | can be replaced, like a tree |
| nonrenewable resource | something that can't be replaced by natural processes |
| soil erosion | the wearing away of surface soil by rain or wind |
| desertification | the changing of good land into desert |
| deforestation | loss of forest land |
| acquaculture | the raising of aquatic animals |
| smog | mix of chemicals, gray-brown haze in atmosphere |
| pollutant | harmful material that enter the biosphere |
| acid rain | nitrogen plus sulfur that comine with water forming nitric and sulfuric acids |
| biodiversity | biological diversity |
| species diversity | the number of different species on earth |
| genetic diversity | the different form of genetic information |
| extinction | a species that disappears |
| endangered species | species that is declining in size and in danger of extinction |
| habitat fragmentation | the breaking off of habitats |
| invasive species | new species come into a habitat |
| conservation | the preservation of habitats and wildlife |
