1. What is the Atmosphere?

– The atmosphere is the layer of gases that surrounds our planet Earth.
– It consists of a mixture of gases, primarily nitrogen (78%), oxygen (21%), and small amounts of other gases like carbon dioxide and water vapor.

2. Role of the Atmosphere:
– The atmosphere plays a vital role in protecting life on Earth by providing a range of benefits.

3. Protection from Harmful Sunlight:
– The atmosphere shields us from the harmful effects of the Sun’s intense radiation, including ultraviolet (UV) rays.
– Without the atmosphere, Earth would be too hot during the day and too cold at night.

4. Maintaining Temperatures:
– The atmosphere helps regulate Earth’s temperature through a process called the greenhouse effect.
– It traps some heat, keeping our planet warm enough for life to thrive.

5.Air to Breathe:
– Oxygen, one of the gases in the atmosphere, is essential for breathing.
– All living things, including humans and animals, depend on this oxygen to survive.

6. Protection from Meteoroids:
– The atmosphere acts as a protective shield, burning up most meteoroids that enter it.
– This prevents them from reaching the Earth’s surface and causing damage.

7. Air Pressure:
– The atmosphere exerts pressure on everything at the Earth’s surface.
– This pressure keeps our bodies and other objects from being crushed by the vacuum of space.

8. Weather and Climate:
– The atmosphere is responsible for weather and climate patterns, which are essential for life on Earth.
– It brings rain, which helps plants grow, and creates wind, which helps disperse seeds.

9. Ozone Layer:
– The ozone layer, a part of the atmosphere, protects us from harmful UV rays.
– It is crucial for preventing skin cancer and other health problems.

10. Air Quality:
– The atmosphere also helps maintain good air quality by dispersing pollutants and providing us with clean, breathable air.

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