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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 atmosphere?
Ans. The atmosphere is the layer of gases that surrounds the Earth. It is composed of nitrogen, oxygen, carbon dioxide, and traces of other gases.
2. How does the atmosphere affect the Earth's climate?
Ans. The atmosphere plays a crucial role in regulating the Earth's climate. It traps heat from the sun, creating a greenhouse effect that keeps the planet warm. It also absorbs and scatters solar radiation, moderating temperature extremes and distributing heat around the globe.
3. What are the different layers of the atmosphere?
Ans. The atmosphere is divided into five main layers: the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. Each layer has its own unique characteristics and plays a specific role in Earth's atmospheric processes.
4. How does the atmosphere protect life on Earth?
Ans. The atmosphere acts as a shield, protecting life on Earth from harmful solar radiation and cosmic rays. It also filters out most of the sun's ultraviolet (UV) radiation, preventing it from reaching the surface and causing damage to living organisms.
5. How is the composition of the atmosphere changing?
Ans. The composition of the atmosphere is changing due to human activities, primarily the burning of fossil fuels and deforestation. These activities release large amounts of greenhouse gases into the atmosphere, leading to global warming and climate change.
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