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Ecosystems
Environmental Impact of Organisms
Question | Answer |
---|---|
pollution | The presence of harmful substances in the environment. |
renewable resource | A natural resource that can be used and replaced over a relatively short time. |
nonrenewable resource | A natural resource that cannot be replaced or that can be replaced only over thousands or millions of years. |
overpopulation | When the number of individuals becomes so large they cannot get the resources they need on a regular basis. |
biodiversity | The number and variety of living things found in a habitat. |
biodegradable | Something that is capable of being broken down by the environment. |
resource recovery | The process of transforming things we normally throw away into usable products. |
conservation | The wise use of and preservation of natural resources. |
recycling | The process of making new products from reprocessed used products. |
alien species | An organism that makes a home for itself in a new place. It is also called a non-native species. |
invasive species | An alien species whose introduction causes harm to the environment or human health. |