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The Carbon Cycle Quick Check
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Question
Which of the following is true about carbon?(1 point)
Responses

Carbon in the atmosphere has been at the exact same levels for the past few centuries.
Carbon in the atmosphere has been at the exact same levels for the past few centuries.

Carbon is an essential building block for all living things.
Carbon is an essential building block for all living things.

Carbon is a living organism.
Carbon is a living organism.

Carbon is the same thing as carbon dioxide.
Carbon is the same thing as carbon dioxide.
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All Answers 1

Answered by GPT-5 mini AI
"Carbon is an essential building block for all living things."

Brief explanation: Carbon is an element that forms the backbone of organic molecules (proteins, carbohydrates, lipids, nucleic acids). It is not a living organism, it is not the same as carbon dioxide (CO2 is just one carbon-containing compound), and atmospheric carbon levels have changed (they've increased in recent centuries).