Because of instability and moisture.
The vast majority of the moisture in the earths's atmosphere. The amounts in the other layers are generally inconesquential.
The troposphere is the layer of the atmosphere that contains people and weather. The troposphere is the only layer of the atmosphere that contains breathable air.
Life primarily exists in the troposphere, which is the lowest layer of Earth's atmosphere. This layer extends from the Earth's surface up to about 10-15 kilometers in altitude, where most of Earth's weather events occur and where the air is most suitable for supporting life.
The lowest is the troposphere, which is the layer that provides most of our weather. It contains about 80% of the Earth's air, but extends only to a height of about 11 miles (17 kilometers) at the Equator and less at the Poles.
The troposphere is the only layer of the atmosphere that supports life. It is the layer closest to Earth's surface and contains the air we breathe, as well as the majority of Earth's weather phenomena.
The troposphere is the lowest layer of Earth's atmosphere where weather events occur. It contains the majority of the atmosphere's mass and water vapor, which leads to the formation of clouds, precipitation, and turbulent air movements. It is where most of Earth's weather, such as storms and winds, takes place.
The layer of Earth's atmosphere where weather occurs is the troposphere. This layer is closest to the Earth's surface and extends up to an average altitude of about 8 to 15 kilometers. It is where all our weather phenomena, such as clouds, rain, and storms, take place.
Only the Troposphere has high levels (only 20% however) to suport life, but water vaper is found in all levels of the Atmosphere. But, when Evaperation mixes the water vaper found close to earth with the water in the Troposphere, it condesnes into a cloud before the vaper could have reached the outer layers.
The troposphere is the only layer of atmosphere that has rain.
The ozone layer is present in stratosphere region of the atmosphere thus, the ozone layer is depleted in this layer only. It is destroyed by the harmful CFC's released into the atmosphere.
People, animals, and plants live in the troposphere, which is the lowest layer of Earth's atmosphere. This layer extends from the surface up to around 8-15 kilometers (5-9 miles) depending on the location. The troposphere contains the air we breathe and where weather phenomena occur.
The ozone layer is concentrated in only one layer. It is because of suitable forming conditions.