Because the evaporation of water depends on many factors: temperature, pressure, winds, bodies of water.
because inhale air is oxygen and due to that we stay alive
The major factor affecting the amount of water vapour is temperature.
An atmospheric river is a narrow and long band of atmospheric moisture which transports lots of water vapour from the tropics in a manner similar to how a terrestrial river transports water.
It varies. There is no single percentage value
nope.
humidity
Humidity
It is humidity.
Humidity is the amount of water vapour in the atmosphere
Relative Humidity is the measure of water vapour in air. It is the ratio of the actual water vapour in air divided by the maximum amount the water the air can hold at the existing temperature and pressure. It tells how fast or slow the water on the body or in clothes will evaporate or in otherwords is the air dry or humid. Absolute measure of water vapour in air is called specific humidity. It can be measured as ratio of mass of water and mass of dry air.
Humidity is the measurement of the amount of water vapour in the air.
The amount of water vapor in the atmosphere varies due to factors such as temperature, pressure, and geography. Warmer air can hold more moisture, leading to higher concentrations of water vapor in tropical regions. Additionally, proximity to bodies of water, elevation, and local weather patterns influence humidity levels. Consequently, these variations create a dynamic distribution of water vapor across different atmospheric layers and locations.