Discussion :: Atmosphere
- Choose the correct option with the correct sequence of the layers of atmosphere
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A.
Mesophere, Ionosphere, Exosphere, Troposphere, Stratosphere |
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B.
Ionosphere, Exosphere, Mesosphere, Stratosphere, Troposphere |
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C.
Exosphere, Troposphere, Ionosphere Mesosphere, Stratosphere |
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D.
Troposphere, Stratosphere, Mesosphere, Ionosphere, Exosphere |
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Answer : Option D
Explanation :
The troposphere is the layer that we live in. The troposphere starts at ground level and extends about 12 km upwards. From about 12 km to 50 km upwards is the stratosphere. In this layer, the jet stream blows strong winds eastward. The mesosphere is the coldest region of Earth’s atmosphere. It’s somewhere close to -100 degrees Celsius. The ionosphere is defined as the layer of the Earth's atmosphere that is ionized by solar and cosmic radiation. It lies 75-1000 km (46-621 miles) above the Earth. The exosphere is the uppermost region of Earth's atmosphere as it gradually fades into the vacuum of space.
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