I believe the 3 most dominant gases of our atmosphere are nitrogen, carbon dioxide and methane
The troposphere is the atmospheric zone that covers approximately 70% of the Earth's surface. It is where most weather phenomena occur and where the majority of Earth's atmospheric gases are found.
The atmospheric gases essential for life on Earth are oxygen and carbon dioxide. Oxygen is needed for respiration by most organisms, while carbon dioxide is essential for photosynthesis in plants. Both these gases are crucial for the survival of organisms in maintaining the balance of the ecosystem.
Most of earth's atmosphere is in the lowest layer, the troposphere. Thus most of the gases are within 15 km of the Earth's surface.
Pressure
The main atmospheric gases that help hold the Earth's atmosphere in place are nitrogen and oxygen. These gases are constantly present in the atmosphere and provide the necessary pressure to keep the atmosphere close to Earth's surface. Additionally, small amounts of other gases like carbon dioxide, methane, and water vapor also contribute to trapping heat and maintaining Earth's temperature.
The dominant atmospheric gases on Mercury are oxygen, sodium, hydrogen, helium, and potassium. However, the atmosphere on Mercury is very thin, with a pressure about 10^-15 times that of Earth's atmosphere.
The atmospheric gases carbon dioxide, methane and nitrous oxide are all greenhouse gases that help to heat the Earth.
The atmosphere refers to the envelope of gases surrounding the planets like the earth.
The troposphere is the atmospheric zone that covers approximately 70% of the Earth's surface. It is where most weather phenomena occur and where the majority of Earth's atmospheric gases are found.
within 8 to 12 km of earth's surface
The atmospheric gases essential for life on Earth are oxygen and carbon dioxide. Oxygen is needed for respiration by most organisms, while carbon dioxide is essential for photosynthesis in plants. Both these gases are crucial for the survival of organisms in maintaining the balance of the ecosystem.
Most of earth's atmosphere is in the lowest layer, the troposphere. Thus most of the gases are within 15 km of the Earth's surface.
Within 8 to 12 KM of Earth's surface
The exosphere is the atmospheric layer that contains the fewest gases. It is the outermost layer of Earth's atmosphere and consists of very low densities of hydrogen and helium, along with traces of other gases.
Pressure
Carbon Dioxide makes up roughly 96.5% of Venus' atmosphere. Nitrogen makes up another 3.5%, leaving trace amounts of other gases.
The main atmospheric gases that help hold the Earth's atmosphere in place are nitrogen and oxygen. These gases are constantly present in the atmosphere and provide the necessary pressure to keep the atmosphere close to Earth's surface. Additionally, small amounts of other gases like carbon dioxide, methane, and water vapor also contribute to trapping heat and maintaining Earth's temperature.