Questions and Answers
What is the layer of air surrounding the Earth called?
The atmosphere
What is the layer of the atmosphere where weather changes take place?
The troposphere
What is the importance of air in our lives?
Air is the main reason for life on Earth and all living things need air to breathe.
What is the primary function of the ozone layer?
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What happens to meteoroids in the mesosphere?
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What is the layer of the atmosphere where auroras are observed?
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What is the upper limit of the Earth's atmosphere called?
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What is the characteristic of air that we can feel?
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What is the range of altitude in the exosphere layer?
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Which layer of the atmosphere do jet planes often fly within?
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What is the term for the altitude of 100 km above the Earth's surface?
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What happens to air in the thermosphere layer?
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In which layer of the atmosphere do we live?
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What is the range of altitude in the ozone layer?
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What is the purpose of the ozone layer?
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In which layer of the atmosphere do satellites orbit?
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Study Notes
Air and Atmosphere
- Air is invisible, but its presence can be felt when it moves, which is known as wind.
- Air is essential for life on Earth, and all living things require it to breathe.
Layers of the Atmosphere
- The atmosphere is a thick layer of air surrounding the Earth, which moves with the Earth's rotation.
- The atmosphere can be divided into several layers, including:
- Exosphere: 2,700 to 190,000 km, the upper limit of the atmosphere with the least amount of air.
- Exobase: 700 to 1,000 km.
- Thermosphere: 80 to 700 km, where auroras are observed and satellites orbit the Earth.
- Karman line: 100 km, a boundary within the thermosphere.
- Mesosphere: 50 to 80 km, where meteoroids burn and do not reach the Earth.
- Stratosphere: 12 to 50 km, containing the ozone layer (20 to 30 km) that absorbs harmful ultraviolet rays from the sun.
- Troposphere: 0 to 12 km, the densest part of the atmosphere, where all weather changes occur and human life exists.
Air and Atmosphere
- Air is invisible, but its presence can be felt when it moves, which is known as wind.
- Air is essential for life on Earth, and all living things require it to breathe.
Layers of the Atmosphere
- The atmosphere is a thick layer of air surrounding the Earth, which moves with the Earth's rotation.
- The atmosphere can be divided into several layers, including:
- Exosphere: 2,700 to 190,000 km, the upper limit of the atmosphere with the least amount of air.
- Exobase: 700 to 1,000 km.
- Thermosphere: 80 to 700 km, where auroras are observed and satellites orbit the Earth.
- Karman line: 100 km, a boundary within the thermosphere.
- Mesosphere: 50 to 80 km, where meteoroids burn and do not reach the Earth.
- Stratosphere: 12 to 50 km, containing the ozone layer (20 to 30 km) that absorbs harmful ultraviolet rays from the sun.
- Troposphere: 0 to 12 km, the densest part of the atmosphere, where all weather changes occur and human life exists.
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Description
This quiz is about the importance of air, its properties, and the layers of the atmosphere that surrounds the Earth. Learn about the role of air in supporting life and its various uses in our daily lives.
