No. However, some water vapor in the upper atmosphere is split apart into hydrogen and oxygen by ultraviloet radiation. Some of this hydrogen leaves the atmosphere. This rate of loss is tiny, however.
The atmosphere exchanges various gases and particles with the Earth's surface and space. Key components that enter the atmosphere include water vapor, carbon dioxide, and oxygen from biological processes like photosynthesis and respiration, as well as pollutants from human activities. Conversely, substances such as carbon dioxide and methane can leave the atmosphere through processes like absorption by oceans and vegetation. Additionally, particles from space, such as meteoroids, enter the atmosphere regularly, while gases can escape into space under certain conditions.
Water leaves the Earth through a process called evaporation, where it turns into water vapor and rises into the atmosphere. It can also leave through transpiration from plants, and as precipitation when it falls back to the Earth as rain or snow.
The radiation that Earth reemits is mostly absorbed by greenhouse gases like carbon dioxide and water vapor in the atmosphere. These gases trap the heat and prevent it from escaping back into space, contributing to the Earth's overall temperature and climate.
The two characteristics of the troposphere that help retain water vapor on Earth are the relatively low temperatures and high pressure at lower altitudes. The low temperatures allow the air to hold more water vapor, while the high pressure helps keep the water vapor from escaping into space.
Gases in the atmosphere, like carbon dioxide and water vapor, trap heat from the sun in a process known as the greenhouse effect. These gases allow sunlight to enter the Earth's atmosphere and warm the planet, but trap some of the heat that would otherwise escape back into space. This helps maintain the Earth's temperature at a level suitable for life.
The atmosphere helps to insulate Earth by trapping heat from the sun through a process called the greenhouse effect. Gases in the atmosphere, such as carbon dioxide and water vapor, allow sunlight to enter and warm the Earth's surface. However, they also trap some of this heat, preventing it from escaping back into space and helping to maintain temperatures conducive for life.
Water vapor is prevented from escaping into space primarily due to Earth's gravity, which holds the atmosphere, including water vapor, close to the planet's surface. Additionally, the atmosphere's temperature and pressure conditions create a balance that keeps water vapor within it. The presence of other gases, such as nitrogen and oxygen, also contributes to the overall density of the atmosphere, further inhibiting the escape of lighter gases like water vapor.
Atmospheric water vapor contributes to Earth's warming by trapping heat from the sun, acting as a greenhouse gas. This process, known as the greenhouse effect, helps regulate the planet's temperature by preventing heat from escaping into space.
Water vapor enters the air as water at the surface evaporates or as plants transpire water vapor from their leaves.
Some atmospheric gases trap infrared heat radiated by the Earth. They are called greenhouse gases and the process is called the greenhouse effect. Among the gases are water vapor, carbon dioxide, and methane.
Water vapor enters the earth's atmosphere in mountain regions through evaporation from bodies of water and vegetation, as well as through sublimation from snow and ice. Additionally, the orographic lift effect can cause air to rise and cool, leading to condensation and the formation of clouds.
Some frequencies of light are attenuated by water vapor.