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Questions and Answers
What is the most abundant gas in the Earth's atmosphere?
What is the most abundant gas in the Earth's atmosphere?
- Nitrogen (correct)
- Oxygen
- Carbon dioxide
- Argon
What is the atomic number of carbon?
What is the atomic number of carbon?
- 6 (correct)
- 8
- 9
- 7
Which of the following is a renewable source of energy?
Which of the following is a renewable source of energy?
- Wind (correct)
- Natural gas
- Coal
- Nuclear power
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