easyatmosphere

The atmosphere is composed of approximately:

78% nitrogen, 21% oxygen. The atmosphere is approximately 78% nitrogen, 21% oxygen, with the remaining 1% being argon, CO2, and trace gases.

78% oxygen, 21% nitrogen

78% nitrogen, 21% oxygen

50% nitrogen, 50% oxygen

90% nitrogen, 10% oxygen

78% nitrogen, 21% oxygen✓ Correct Answer

Explanation

The atmosphere is approximately 78% nitrogen, 21% oxygen, with the remaining 1% being argon, CO2, and trace gases.

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