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12 Cards in this Set
- Front
- Back
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What is pollution?
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harmful substances in the environment.
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What is renewable resources?
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A resource that can be used over and over. (Unlimited Uses)
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What is nonrenewable resources?
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A resource that can't be used more than once.
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What is overpopulation?
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The number of people gets so large that there isn't enough food for everyone.
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What is biodiversity?
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The number and variety of living things.
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What is biodegradable?
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Something that can be broken down by the environment.
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What is conservation?
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Preservation of a natural resource.
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What is recycling?
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The process of making products new products from old products.
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What is resource recovery?
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The process of making new usable products from things thrown away.
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What is deforestation?
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Clearing of forest lands.
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What is alien species?
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An organism that makes a new home for itself somewhere else.
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What is the ozone layer?
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A layer that protects the earth from ultra-violet light.
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