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Q: By percentage, which of the following gases is less than the rest in the earth's atmosphere?
  • A. Carbon dioxide
  • B. Argon
  • C. Oxygen
  • D. Nitrogen
Correct Answer: Option A - As per the NASA, the composition of the earth’s atmosphere is as mentioned below: Nitrogen — 78 percent Oxygen — 21 percent Argon — 0.93 percent Carbon dioxide — 0.04 percent Trace amounts of Neon, Helium, Methane, Krypton and Hydrogen, as well as water vapour.
A. As per the NASA, the composition of the earth’s atmosphere is as mentioned below: Nitrogen — 78 percent Oxygen — 21 percent Argon — 0.93 percent Carbon dioxide — 0.04 percent Trace amounts of Neon, Helium, Methane, Krypton and Hydrogen, as well as water vapour.

Explanations:

As per the NASA, the composition of the earth’s atmosphere is as mentioned below: Nitrogen — 78 percent Oxygen — 21 percent Argon — 0.93 percent Carbon dioxide — 0.04 percent Trace amounts of Neon, Helium, Methane, Krypton and Hydrogen, as well as water vapour.