Natural Science CLEP Prep Practice Exam

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Study for the Natural Science CLEP Exam. Prepare with interactive quizzes and questions that cover essential concepts in natural science to ensure you're ready for test day!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

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.