What were the main gasses in the 1st atmosphere; 2nd atmosphere; and current atmosphere? What were the main causes that changed one into another?
2007-01-08 14:48:12 · 2 answers · asked by Myeisha D 1 in Science & Mathematics ➔ Earth Sciences & Geology
Earth's atmosphere contains about 78% nitrogen, 21% oxygen, 0.93% argon, 0.04% carbon dioxide, and trace amounts of other gases, in addition to water vapor
The atmosphere is classified into the following and contains the following gases:
1st atmosphere layer:
Troposphere - contains approximately 75% of the mass of the atmosphere and almost all the water vapor and aerosol.
The following are middle atmosphere:
Statosphere -
Mesosphere -
The following are top atmosphere:
Thermosphere -
Exosphere -
More info:
http://en.wikipedia.org/wiki/Earth's_atmosphere
2007-01-08 14:56:31 · answer #1 · answered by thewiseone 3 · 1⤊ 0⤋
check the site
http://sunshine.chpc.utah.edu/labs/atmosphere/atm_gases1.html
2007-01-08 22:57:26 · answer #2 · answered by jamaica 5 · 0⤊ 0⤋