The atmosphere is a mixture of nitrogen (78%), oxygen (21%), and other gases (1%) that surrounds Earth.High above the planet, the atmosphere becomes thinner until it gradually reaches space. It is divided into five layers. Most of the weather and clouds are found in the first layer.
The first layer of the atmosphere is exosphere is the outermost region of a planet's atmosphere, and also the layer satellites orbit around Earth.The exosphere is almost a vacuum. The "air" is very, very thin there. When air is thin, it doesn't transfer much heat to objects in the air, even if the air is very, very hot.
The thermosphere is the layer of the Earth's atmosphere directly above mesosphere and directly below exosphere, in this layer UV causes ionization, and thermosphere temperatures increase with altitude due to absorption of highly energetic solar radiation, and also has shuttles orbit it.
The mesosphere is the layer of the Earth's atmosphere that is directly below the thermosphere the mesosphere is located about 50 to 85 kilometers (30 to 50miles) above the Earth's surface, the mesosphere temperatures decreases with increasing altitude, also the layer meteors come in at. The top of the mesosphere is the coldest it can get down to -90° C (-130° F).
The stratosphere is the second major layer of Earth's atmosphere just above the troposphere and below the mesosphere it is stratified in temperature with warmer layers higher up and cooler layers farther down, the Earth's atmosphere weather occurs in this layer, and many jet aircrafts fly in the stratosphere because it is very stable.
The troposphere is the lowest layer of the Earth's atmosphere, almost all weather occur in this layer, the air is the warmest at the bottom of the troposphere near ground level. Higher up it gets colder. Nearly all the water vapor and dust particles in the atmosphere are in troposphere, that is why clouds are found in this lower layer too. The bottom of troposphere right next to the surface of Earth is called, "the boundary layer". You can also see planes in the troposphere, and mountains.