Mesosphere extends to an altitude of about 50 km from the stratosphere to the mesopause which is the boundary between the mesosphere and the second highest layer the thermosphere. Gases like nitrogen (78%), oxygen (just under 21%) are the main constituents of the air. Plants use it during the photosynthesis to produce food on which the organisms depend. Most satellites that orbit the earth are found in the exosphere. In this layer, the air is very thin. The troposphere is where we breath in and is also referred to as the lower atmosphere. This layer of gasses is often referred to as air and is held by the earth’s gravity. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. In this layer, temperature reduces with an increase in altitude. As you move away from the surface of the Earth, the air becomes thin and temperature of the troposphere decreases by 43.7º F (6.5º C) per kilometer. Ionosphere: The ionosphere contains electrically charged molecules of the oxygen, nitrogen and other elements which reflects the radio waves back to the Earth and enables the long distance communication. Atmosphere is, therefore, a quick and effective media for transfer, transport and dissemination of gaseous wastes. Copyright © Science Struck & Buzzle.com, Inc.

Sign up to receive the latest and greatest articles from our site automatically each week (give or take)...right to your inbox. At temperatures of about -85°C, it is the coolest place on earth. The Stratosphere starts from the tropopause and extends to an altitude of about 31 miles (50 kilometers) above the Earth. It is the hottest layer of the atmosphere, but the air density is so low that the high temperature cannot be felt at all. Necessary cookies are absolutely essential for the website to function properly. Lies just above the troposphere, extending up to 31 miles (50 km) high. Just above the mesopause is the second highest layer of the atmosphere known as the thermosphere. The exosphere extends from the thermosphere to about 6,200 miles (10,000 km) and is the upper limit of the atmosphere.

Each layer is important to man and is studied under the branch of Earth science. Airplanes and other commercial aircraft fly in the troposphere. Atmosphere layers envelope the Earth to create a sanctuary for all the organisms. This movement of air is termed as the ‘Jet Streams’, which plays an important role in the weather of the Earth. It stretches over the mesosphere, most of the thermosphere, and some parts of the stratosphere. This Buzzle article lists some more information related to the…. Here they are sparsely dispersed.

The stratosphere extends to a height of about 12 km from the troposphere and an altitude of about 55 km from the surface of the earth. The thermosphere is where satellites and space stations, like the International Space Station, orbit the Earth. Read on to know the significance of each layer of…, The four main layers of the Earth are the crust, mantle, outer core, and the inner core.

The ionosphere stretches from 49.7 miles to 341 miles (80 to 550 kilometers), above the Earths surface. As time moved on, the Earth cooled down and is still cooling, as of today. However, the tremendous increase in the industrial activity is taking its toll on the atmosphere. Temperatures in the mesosphere can be as low as -148º F (-100º C). Ozone layer absorbs the skin cancer causing, ultraviolet radiations and thus, protects the life on the Earth. Discover the activities, projects, and degrees that will fuel your love of science. This website uses cookies to improve your experience. The high temperatures help in creating a stable atmospheric pressure.

Exosphere extends to a height of about 700km from the exobase.