Science Test vocab.
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Terms
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- fossil fuels
- a fuel formed from the remains of once living organisms
- bitumen
- a fairly hard, dark brown or black rock; the third stage of coal formation
- natural resource
- any of the useful minerals and other materials that people take from the Earth
- renewable resource
- a resource that is replaced as it is used
- natural gas
- a gas, methane, usually found with petroleum
- lignite
- a soft brown rock; 2nd stage of coal formation
- recycling
- the prosses of taking a resource from a products and making it a new product
- reusable resource
- a natural resource that is renewed by natural cycles and can be used more than once; inexhausible resource
- anthracite
- a hard, black rock; the fourth stage of coal formation
- peat
- a soft, brown material made up of partly decayed plants; first stage of coal formation
- nonrewable resource
- a ressource that cannot be readily replaced onced it is used.