Question

What are the sources of information about the atmosphere​

Answer 1

Books , internet and Google are some sources of information of atmosphere

Answer 2

Answer:

An atmosphere is more likely to be retained if the gravity it is subject to is high and the temperature of the atmosphere is low. The atmosphere of Earth is composed of nitrogen (about 78%), oxygen (about 21%), argon (about 0.9%), carbon dioxide (0.04%) and other gases in trace amounts.