The following chemical equation shows the reaction in which
natural gas (methane or CH4) is burned.
Refer to this equation while answering the following questions.
19. Refer to the equation above. Which of the molecules in
this reaction is a product of the decomposition of ancient organisms?
a) CH4
b) O2
c) CO2
d) H2O
The best answer is answer a, CH4.
Methane (CH4) is produced by the decay
or decomposition of living organisms, and is thus sometimes called a fossil
fuel.
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Slichter