Natural Science CLEP Prep Practice Exam

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Prepare for the Natural Science CLEP Exam with comprehensive quizzes and multiple choice questions. Each question includes hints and explanations to help you succeed. Ace your exam!

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What is the main component of air?

Carbon
Oxygen
Nitrogen
Carbon dioxide

The correct answer is: Nitrogen

The main component of air is nitrogen. While carbon and oxygen are also present in air, they are not the main component. Carbon dioxide is also not the main component of air, as it only makes up a small percentage compared to nitrogen. Additionally, water vapor, argon, and other gases are also present in air, but they are not the main component. Therefore, the best answer would be nitrogen.