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Questions and Answers
What is the significance of carbon mentioned in the text?
What is the significance of carbon mentioned in the text?
- It is important in both its elemental form and in combined form. (correct)
- It is significant due to its high abundance in the earth's crust.
- It is only important in its elemental form.
- It is significant because it is the most reactive element.
What percentage of carbon is present in the earth's atmosphere?
What percentage of carbon is present in the earth's atmosphere?
- 0.03% (correct)
- 0.05%
- 0.02%
- 0.1%
Where is the majority of carbon found on Earth?
Where is the majority of carbon found on Earth?
- In the form of hydrogencarbonates
- In the earth's crust as minerals like carbonates and coal (correct)
- In the atmosphere as carbon dioxide
- In living structures
Why are food, clothes, medicines, and books mentioned in relation to carbon?
Why are food, clothes, medicines, and books mentioned in relation to carbon?
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What type of compounds are most things made up of, according to the text?
What type of compounds are most things made up of, according to the text?
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