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ecology 2
| Question | Answer |
|---|---|
| demography | scientific study of human population |
| demographic transition | change in a population from high birth and death rates to low birth and death rates |
| green revolution | the development of highly productive crop strains and the use of modern agriculture tecniques to increase yields of food crops |
| renewable resource | resources that can regenerate quickly and that is replaceable |
| pollutant | harmful material that can enter the biosphere through the land air or water |
| biodiversity | biological diversity the sum total of the variety of organisms in the biosphere |
| biological magnification | increasing concentration of a harmful substance in organisms at higher trophic levels in a food chain or food web |