Evaporation from the oceans
The primary source of water vapor in the atmosphere is through evaporation from the Earth's surface, including oceans, rivers, lakes, and soil. This process releases water molecules into the air in the form of vapor, which contributes to the water cycle.
If you are referring to water vapor in the atmosphere, most comes from the largest water source on the planet, the oceans.
If you are referring to water vapor in the atmosphere, most comes from the largest water source on the planet, the oceans.
Most water vapor enters the atmosphere through processes like evaporation from bodies of water, transpiration from plants, and sublimation from ice and snow. These processes convert liquid water to water vapor, which then rises into the atmosphere and contributes to the water cycle.
Oceans
Transpiration from plants and evaporation from water. Water is evaporated from ground water and plants release water from their stomatas. These are the main sources of water vapor in the atmosphere
The most significant source of oxygen in Earth's atmosphere is photosynthesis by plants, algae, and cyanobacteria. These organisms take in carbon dioxide and water, using sunlight to produce oxygen as a byproduct. This process has been crucial in maintaining the balance of oxygen and carbon dioxide in our atmosphere for billions of years.
oceans
The most important source of carbon entering atmosphere is industries. Living things, burning fossil fuels and automobiles are other sources of carbon dioxide.
The most important sources of moisture in the atmosphere are evaporation from oceans, lakes, rivers, and other bodies of water, as well as transpiration from plants. Additionally, human activities such as agriculture and industrial processes can contribute to the amount of water vapor in the atmosphere through activities like irrigation, cooling systems, and combustion.
Evaporation.
The most variable abundance in the atmosphere is Water Vapour and Ozone