Question

1. Explain the composition of the atmosphere. (AS)
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Answer 1

Answer:

Nitrogen accounts for 78% of the atmosphere, oxygen 21% and argon 0.9%. Gases like carbon dioxide, nitrous oxides, methane, and ozone are trace gases that account for about a tenth of one percent of the atmosphere.

Answer 2

Answer:

nitrogen=78%

oxygen=21%

CO2 and other gases=1%