| Term | Definition |
|---|
| ecosystem | a place where living elements depend on one another - and on living things- for their survival |
| deforestation | the process of clearing land of forest or tree, usually to make room for farms and homes |
| habitat | the area in which a plant or animal naturally grows or lives |
| acid rain | rain whose high level of chemicals can pollute or damage the environment |
| ozone layer | the layer of gas in the upper part of the atmosphere that blocks out most of the sun's harmful rays |
| global warming | a slow increase of the earth's temperature |
| recycle | re-use old materials to make new products |
| natural resource | any useful material from the environment that humans use to survive |
| raw material | a resource that is still in its natural state |
| recycable resource | a resource that cycles through natural processes in the environment |
| renewable resource | a natural resource that the environment replaces as it is used |
| nonrenewable resource | a resource that cannot be replaced once it is used |
| fossil fuel | a resource created from the remains of plants and animals |
| manufacturing | the process of turning a raw material into a finished product |
| developed nation | a modern industrial society with a well developed economy |
| developing nation | a country with relativly low industrial production |
| commercial farming | farming that is done by companies |
| subsistence farming | farming that only provides enough for a family or village |
| plantation | a large estate inwhich crops are grown by workers living there |
| foreign aid | economic and military aid to another country |
Combine with other sets
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