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sources of energy - Coggle Diagram
sources of energy
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wind power
expensive, wind not always
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Oil
petroleum or crude
- from dead organisms undergo a transformation process
-activities such as seismic surveying, rock core sampling geologists locate oil reserves
- petroleum products: gasoline, diesel, jet-fuel, asphalt. causes land disturbance, contributes to global greenhouse gas emission levels.
Coal
- 4 main types: lignite (25-35% carbon), sub-bituminous (35-45% carbon), bituminous (45-86% carbon), anthracite.
-negative impacts on ecology, human safety issues both for workers and neighbouring communities, cause pollution problems.
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Natural Gas
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- methane is a potent greenhouse gas
- colourless, odorless, highly toxic gas
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