Earth's earliest atmosphere lacked oxygen, and was primarily composed of gases like carbon dioxide, water vapor, nitrogen, and methane.
The primary gas in Earth's atmosphere is nitrogen, accounting for about 78% of the total atmospheric composition.
Oxygen is the gas that accounts for about 20 percent of Earth's atmosphere.
Argon is a noble gas and does not react with other elements in the atmosphere, so it has remained relatively constant over time. The initial percentage of argon in the Earth's atmosphere was likely determined by the gases present during the planet's formation. The lack of significant processes that remove or add argon to the atmosphere has helped to maintain its percentage over time.
Nitrogen makes up about 78% of Earth's atmosphere.
Water vapor is a variable gas in Earth's atmosphere. Its concentration can vary depending on factors such as temperature, location, and weather patterns.
gas-gas
The Gas Giants have a deep gas atmosphere and earth have a not so deep atmosphere
Oxygen gas
Nitrogen
oxygen
nitrogen
ozone
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
This gas was carbon dioxide.
Methane gas
Methane gas