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Earth's Resources 1
Earth and Space
Question | Answer |
---|---|
natural resources | materials in the environment that are useful to people |
fossil fuels | a flammable material made from waste and remains of plants and animals in the Earth's crust that is used to produce heat and power |
renewable resources | materials from the Earth that can be replaced by nature within a relatively short period of time; example: trees |
nonrenewable resources | Materials from the Earth that cannot be replaced within a reasonable amount of time; for example |
conservation | to protect and avoid wasteful and destructive use |
reduce | make smaller or use less |
recycle | save and remake into a new product |
reuse | use again instead of throwing away |
fuels | material burned to produce heat energy |