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The 7 Layers the Earth's Atmosphere

By: Hailey, Ramello, Kirstin, Keeneth and Kamryn

Hailey Hammonds

on 28 October 2014

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Transcript of The 7 Layers the Earth's Atmosphere

The 7 Layers of the Earth's Atmosphere
The air is extremly thin here. This layer contains less than .1% of the atmosphere's mass. Most meters burn up in the Mesosphere. is heated from below. The Mesosphere protects the Earthlings from meteors.
Ozone Layer
The Ozone Layer protects the Earthlings from harmful radiation. It absorbs harmful ultraviolet radiation. The reactions that destroy and form the ozone normally balance each other, so the cycle can repeat endlessly.
The Stratosphere is a clear, dry layer of the atmosphere. Within the Stratosphere are molecules of a gas called ozone. These molecules absorb a type of solar radiation that is harmful to the Earthlings. The energy from the radiation raises the tempurture.
Is the layer nearest to Earth's Surface. Convection seems to turn the air over. Contains 80% of the total mass of the atmosphere, including almost all of the water vapor present in the atmosphere. The troposphere is warmed from below by te ground.
The 7 Layers in Order
Ozone Layer
Earth's Surface
The Exosphere is very high up, the atmosphere becomes very thin here. The Exosphere is the region where atoms and molecules escape into space.
Scientists call it an extension of the thermosphere. It represents .1% of the total mass of the atmosphere. Eventhough it's small, it's extremly important. The Sun's energy is really strong at this level, it breaks apart molecules. So electrons floating around and molecules which have lost or gained electrons. When the Sun is active, more ionization happens.
Starts 56 miles above Earth's surface. It grows less dense over the hundreds of miles until it becomes outer space. The air high in this layer becomes very hot because the molecules absorb a certain type of solar radiation. However, even even the hottest air in this layer would feel cold to you because the molecules are so spread out that they would not conduct much energy to your skin. This is where the aurora borialis.
Materials In The Atmosphere
The atmosphere contains tiny particles of solid or liquid material like dust, sea salt, and water droplets. In some places, water vapor can make up as much as 4% of the air. Nitrogen promotes plant growth and is an important ingredient in the chemistry that makes up the Earthlings and living things. Oxygen is necessary for animals ad plants to preform life processes. Plants use carbon dioxide and water to make food.
21% Oxygen
78% Nitrogen
We have a Biodome. Biodomes are mini-man made atmospheres that support life even in the simplist form. When it becomes cut off from the outside world supplying itself with it's own water, then it becomes a natural biodome, getting only sunlight from outside it's area.
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