What was earths atmosphere made up of?

Answer 1

Earth's atmosphere is mostly made up of nitrogen, which makes up 79 percent. The atmosphere contains 20 percent oxygen and 1 percent other gases.

Answer 2

The earth's atmosphere is made of mostly nitrogen (~78%) and oxygen (~20-22%), with some highly variable amounts of humidity (i.e. water), and trace amounts of other elements, primarily:

• argon (9340 ppm) and
• carbon dioxide (400 ppm)
• neon,
• helium,
• methane,
• krypton, and
• hydrogen

Answer 3

Earths atmosphere is mainly made up of nitrogen and oxygen

Answer 4

Gas and air that fored a protevive sheid so me dont die of rays from the sun

Answer 5

the most prevalent gas in our atmosphere is Nitrogen

approx 78%

Answer 6

Earth's atmosphere is 78% nitrogen, 21% oxygen, 0.9% argon, and 0.03% carbon dioxide