Murphy Tsai
what does it mean Recently, I read a article, and one sentence i dont understand. "but the main reason is that natural gas is replacing coal everywhere as an energy source ,and gas emits half as much carbon dioxide as coal. ". In the sentence, what does "...and gas emits half as much carbon dioxide as coal" mean?gas emission =0.5 carbon emission=0.5 coal emission?
Nov 7, 2012 1:57 PM
Answers · 1
gas emission =0.25 carbon dioxide coal emission = 0.50 carbon dioxide that is the correct understanding
November 7, 2012
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Murphy Tsai
Language Skills
Chinese (Taiwanese), English
Learning Language