Combined Science GCSE
Crude oil and natural gas
What Crude oil and natural gas means in Combined Science GCSE, as defined for AQA.
Definition of Crude oil and natural gas
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Reference: AQA
Formed mainly from marine plankton buried in mud on the seabed, where absence of oxygen prevented full decay and heat and pressure converted the organic material into liquid and gaseous hydrocarbons.
Topics that use Crude oil and natural gas
- How carbon dioxide decreased (AQA GCSE)
Related terms
- Atmospheric evolution
- Biomass and carbon storage
- Carbon stores
- Causes of carbon dioxide decrease
- Causes of oxygen and nitrogen increase
- Changes in atmospheric composition over geological time
- Coal
- Hydrocarbons
Using Crude oil and natural gas in the exam
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