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Atmosphere Video Lecture | Geography for UPSC CSE
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FAQs on Atmosphere Video Lecture - Geography for UPSC CSE
| 1. What is the composition of the Earth's atmosphere? |  |
Ans. The Earth's atmosphere is composed mainly of nitrogen (about 78%), oxygen (around 21%), and trace amounts of other gases such as argon, carbon dioxide, neon, and water vapor.
| 2. How does the atmosphere protect life on Earth? | |
Ans. The atmosphere protects life on Earth by filtering harmful solar radiation, maintaining temperatures through the greenhouse effect, and providing essential gases for respiration and photosynthesis.
| 3. What are the different layers of the atmosphere and their characteristics? | |
Ans. The atmosphere is divided into several layers: the troposphere (where weather occurs), the stratosphere (contains the ozone layer), the mesosphere (coldest layer), the thermosphere (high temperatures and auroras), and the exosphere (outermost layer, where satellites orbit).
| 4. How does human activity impact the atmosphere? | |
Ans. Human activities, such as burning fossil fuels, deforestation, and industrial processes, contribute to air pollution and climate change by increasing greenhouse gas concentrations, leading to global warming and adverse environmental effects.
| 5. What role do greenhouse gases play in the atmosphere? | |
Ans. Greenhouse gases, such as carbon dioxide and methane, trap heat in the atmosphere, contributing to the greenhouse effect, which is essential for maintaining the Earth's temperature but can lead to climate change when their levels become excessive.
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Video Description: Atmosphere for UPSC 2025 is part of Geography for UPSC CSE preparation.
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Video Lecture & Questions for Atmosphere Video Lecture | Geography for UPSC CSE - UPSC full syllabus preparation | Free video for UPSC exam to prepare for Geography for UPSC CSE.
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