Same as today; 79% nitrogen, 20% oxygen, and 1% "everything else", which includes carbon dioxide, various oxides of nitrogen, argon, xenon, radon and assorted other gasses.
As the Earth cooled down, gases such as carbon dioxide and water vapor in the atmosphere started to condense and form oceans. This led to a reduction in the amount of these greenhouse gases in the atmosphere, resulting in a shift towards the composition seen today with nitrogen dominating the atmosphere.
The atmosphere gos through many cycles and changes. The significant gases in our atmosphere have not changed substantially in the past several centuries. The primary gas is still Nitrogen, then Oxygen.
Cyanobacteria are the group of organisms most responsible for changing the composition of Earth's early atmosphere. Through photosynthesis, they released oxygen into the atmosphere, fundamentally altering its composition and paving the way for aerobic organisms to evolve.
The primary gas in Earth's atmosphere is nitrogen, accounting for about 78% of the total atmospheric composition.
98% of Titan's atmosphere is Nitrogen
Was the earth atmosphere's composition always the same?
1900 is the last year (the hundredth year) of the 19th century.
A comet has no atmosphere.
The Gas Giants have a deep gas atmosphere and earth have a not so deep atmosphere
The Gas Giants have a deep gas atmosphere and earth have a not so deep atmosphere
The Gas Giants have a deep gas atmosphere and earth have a not so deep atmosphere
Its composition is usually rocky or metallic.
yes
Eris has a frozen atmosphere.
The Gas Giants have a deep gas atmosphere and earth have a not so deep atmosphere
The Gas Giants have a deep gas atmosphere and earth have a not so deep atmosphere
The Chemical Composition of the Earth's atmosphere is important because it holds the Earth together.