Answer the following questions in about 30 words.
(v) What were the gases which initially formed the earth’s atmosphere?
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Answer:
The gases are present in the fixed composition.
Gases present in the atmosphere are - NITROGEN, OXYGEN, CARBON DIOXIDE, HELIUM , ARGON, HYDROGEN.
COMPOSITION:
NITROGEN- 78 percent.
OXYGEN- 21 percent.
CARBON DIOXIDE, HELIUM , ARGON, HYDROGEN.- 0.01 percent.
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