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Definition
| the lower layer of the thermosphere. Begins at 80km and ends at 550km. |
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Definition
| the next layer above the stratosphere. It is the middle layer in the atmosphere. |
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Term
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Definition
| the inner most or lowest level of the Earth's atmosphere. |
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Term
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Definition
| the outer layer of the thermosphere. It starts at 550km and extends to outer space. |
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Term
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Definition
| extends from the top of the troposphere to about 50km above the Earth's surface. |
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Term
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Definition
| The outermost layer of the atmosphere. It is broken into two layers, the ionosphere and the thermosphere |
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Term
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Definition
| the form of oxygen that has three oxygen atoms in each molecule. It helps to reflect the harmful Ultraviolet Rays of the sun. |
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Term
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Definition
| the layer of gases that surrounds the Earth. |
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