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Which of the following is not a source of carbon?

the air
water
soil
rocks

User FAtBalloon
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2 Answers

5 votes
rocks. Because the air water and soil are part of carbon.
User Floria
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5 votes
air contains carbon dioxide (CO2)
soil and rocks may have carbonate (CO3)

so only water is not a source of carbon

User Darshan Dhoriya
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