Class 7 Exam > Class 7 Videos > Footprints Class 7: Book Solutions, Notes & Worksheets > Video: The Atmosphere
Video: The Atmosphere Video Lecture | Footprints Class 7: Book Solutions, Notes & Worksheets
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32 videos|186 docs|40 tests
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FAQs on Video: The Atmosphere Video Lecture - Footprints Class 7: Book Solutions, Notes & Worksheets
| 1. What are the different layers of the Earth's atmosphere? |  |
Ans. The Earth's atmosphere is divided into five main layers: the troposphere, stratosphere, mesosphere, thermosphere, and exosphere.
| 2. What is the composition of the Earth's atmosphere? | |
Ans. The Earth's atmosphere is primarily composed of nitrogen (about 78%) and oxygen (about 21%), with trace amounts of other gases such as carbon dioxide, argon, and water vapor.
| 3. How does the atmosphere affect Earth's climate? | |
Ans. The atmosphere plays a crucial role in regulating Earth's temperature by trapping heat from the sun (greenhouse effect) and distributing it across the planet through winds and ocean currents.
| 4. What is the ozone layer and why is it important? | |
Ans. The ozone layer is a region of the stratosphere that contains high concentrations of ozone molecules. It helps protect life on Earth by absorbing harmful ultraviolet radiation from the sun.
| 5. How does air pressure change with altitude in the atmosphere? | |
Ans. Air pressure decreases with increasing altitude in the atmosphere due to the decreasing density of air molecules. This is why it becomes harder to breathe at higher altitudes.
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Nov 23, 2024 Last updated |
Video Description: Video: The Atmosphere for Class 7 2024 is part of Footprints Class 7: Book Solutions, Notes & Worksheets preparation.
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Introduction of Video: The Atmosphere in English is available as part of our Footprints Class 7: Book Solutions, Notes & Worksheets for Class 7 & Video: The Atmosphere in
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