Answer: A. combustion
Explanation: During complete combustion, carbon and hydrogen react with oxygen (O2) to produce carbon-dioxide (CO2) and water (H2O). The carbon-dioxide produced is released into atmosphere and is utilized for carbon fixation and recycling.
Answer:
The Earth and Moon revolve around the Sun is true
Explanation:
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Answer:
cellular respiration
Explanation:
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Answer:
are comprised of prokaryotic cells
