Oxygen , Carbon , hydrogen
Answer:
sry if im wrong) Coal and natural gas were the most used energy fuels for generating electricity. The world's electricity consumption was 18,608 TWh in 2012. ... In 2016 the total world energy came from 80% fossil fuels, 10% biofuels, 5% nuclear, and 5% renewable (hydro, wind, solar, geothermal).
Explanation:
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What do you think that a very wide space between two contour lines means?
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B.MOUNTAIN TOP</span>