26th November 2019

caltech
17

What is in our atmosphere made of?

Earth's atmosphere is 78% nitrogen, 21% oxygen, 0.9% argon, and 0.03% carbon dioxide with very small percentages of other elements. Our atmosphere also contains water vapor. In addition, Earth's atmosphere contains traces of dust particles, pollen, plant grains and other solid particles.

Correspondingly, what makes up 1% of the atmosphere?

The most abundant gases found in our atmosphere are nitrogen and oxygen. Nitrogen makes up around 78% of the total atmosphere, while oxygen makes up 21%. The remaining 1% is made up mostly of a gas called argon.

What are the components of the atmosphere?

According to NASA, the gases in Earth's atmosphere include:
  • 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 vapor.

What is the composition of the air?

The air in our atmosphere is composed of molecules of different gases. The most common gases are nitrogen (78%), oxygen (about 21%), and argon (almost 1%). Other molecules are present in the atmosphere as well, but in very small quantities.
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