There are five layers of the atmosphere: The troposphere, the stratosphere, the mesosphere, the ionosphere, and the exosphere are the layers of the atmosphere.

The troposphere is the layer of the atmosphere that lies closest to the Earth and is about 11 miles thick. The atmosphere contains most of the air and oxygen in the atmosphere. A water cycle is an illustration of the cycle of water on Earth. Whether you like it or not, winds always bring us some kind of weather.

The stratosphere lies above the troposphere and goes up about 30 miles high. The ozone layer protects the earth from ultraviolet radiation. Ozone is a natural shield that protects you from harmful ultraviolet rays from the sun.

A mesosphere layer is a next layer, reaching up to 50 miles from the Earth. In the troposphere, the temperature usually is in the range of 20 to 60 degrees Celsius (70 to 140 degrees Fahrenheit). Many meteors burn up in this part of the atmosphere, but those that survive are left with just enough energy to pass through the atmosphere. This layer is essential to make our planet habitable. It prevents the water vapour in our atmosphere from becoming clouds that block the sun and cause rain and eventually freeze the planet.

Above the mesosphere is the thermosphere. This layer is characterized by temperatures that are several hundred degrees Celsius above the surface of the planet.  It is composed of a mixture of nitrogen, oxygen, and argon gases.  The temperature of the atmosphere increases with altitude until it reaches the exosphere. The exosphere is the top boundary of the Earth’s atmosphere. It’s very rare to find anything at this altitude that has a breathable atmosphere.

Humans live in the troposphere. It’s a layer of the Earth’s atmosphere where humans live and breathe. The troposphere starts at the Earth’s surface and extends to a height of about ten kilometres. In the troposphere, the air is about 12,500 feet above sea level and has a temperature of about 75 degrees Fahrenheit. This is the layer of air where clouds form because almost all the water in the atmosphere is found there. Layer number 1 is a mixture of mostly nitrogen (78%), oxygen (21%), and argon (0.9%). Trace gases (carbon dioxide, nitrous oxides, methane, and ozone) account for another tenth of a per cent.

Our atmosphere is filled with gaseous particles and gases and is called the “Earth’s atmosphere”. This layer extends beyond our world. The solar wind compresses it and pushes it down. This layer of air, which extends more than 6,000 miles into space, can help calm turbulent weather systems, like tornadoes, hurricanes and typhoons.


Which is the hottest layer in the atmosphere?

The hottest layer in the atmosphere is the uppermost layer, which is the 4th layer from the Earth out of the five layers of our atmosphere. Thermospheres, like the earth’s atmosphere, are divided into layers; the thermosphere extends from just below the lower exosphere to beyond the exoplanet’s ionosphere.


Which layer of the atmosphere is the coldest?

The coldest layer of the atmosphere is the mesosphere, which is around 50 miles above the Earth’s surface. The temperatures at the top of the Mesosphere can range from as low as -90°F, but usually stay below -150°F. Although it is very cold, it actually has very little water vapour, as only the very highest clouds are found within the mesosphere.


What is importance of atmosphere?

The atmosphere is the reason we are able to live on Earth. Its high oxygen level allows us to breathe (there isn’t as much oxygen available on any other planet). In order to survive, our planet needs something that keeps its temperature steady and also lets sunlight in to help keep it warm. That’s why there are plants that use sunlight and water to create oxygen and use carbon dioxide from the air as fuel.

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