| Term | Definition |
|---|
| natural resources | are earth material that sustain life., example water, air, lumber,food and soil energy. |
| ecosystems services | are free services provided by nature that alllow life on earth to continue. example, pollution control ( decomposers), nutrient cycling,( carbo cycle) climate control( greenhouse effect) pollination( bees) and population control (predator/prey). |
| Rate | is the change over time. exaple tree. |
| exponential growth | is anything increased by a fixed percentage of the whole over time.exaple, population growth, the rate of natural resource use, the rate of extinction , the rate of pollution, and the rate of poverty. |
| linear growth | is the rate of change that remains constant. example money |
| sustainably society | meeting the basic needs for the people for , food, water, shelter, cothing etc to the distant future. |
| principle | starting amount. |
| income | what grows back. |
| perpetual resource | is a resource that is renewed or replenished continously. examples, solar energy, winds, tides and flowing water. |
| renewable resource | a resource that can be replenished fairly rapidly ( hours to serval decades) as long as it isn't used faster that it is replaced.examples[ fresh water, fresh air, fertile soil, plants and animals.] |
| nonrenewable resource | a resource that exits in a fixed amount in the earth's crust within a human life time. examples{fossil fuels( oil, coal, and natural gas) matalsamd minerals.} |
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