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What is the primary gas found in the Earth’s atmosphere?

AOxygen
BCarbon Dioxide
CArgon
DNitrogen

Explanation

Nitrogen makes up approximately 78% of the Earth’s atmosphere, followed by oxygen at 21%.

Exam Relevance
  • Topic: Physics, Biology, Chemistry & Astronomy
  • Subtopic: Human Anatomy, Earth Science, Solar System & Basic Principles
Submitted by: mcqstutor Team More Everyday Science MCQs →

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