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(Importance of Atmosphere, Troposphere, Stratosphere, Mesosphere,…
Importance of Atmosphere
Gives air for breathing
Protects from harmful rays
Helps weather formation
Burns meteors
Supports communication
Troposphere
Features
Weather occurs here
Clouds, rain, storms form here
Contains most air and water vapour
Position
Lowest layer
Closest to Earth
Example
Aeroplanes fly
Mountains and clouds
Result
Supports life on Earth
Stratosphere
Features
Contains Ozone Layer
Air is calm and stable
Position
Above Troposphere
Example
Jets fly here
Result
Protects Earth from harmful sun rays
Mesosphere
Features
Coldest layer
Meteors burn here
Position
Above Stratosphere
Example
Shooting stars
Result
Protects Earth from meteors
Thermosphere
Features
Very high temperature
Contains Ionosphere
Auroras occur here
Position
Above Mesosphere
Example
Northern lights
Result
Helps radio communication
Exosphere
Features
Very thin air
Merges into space
Position
Outermost layer
Example
Satellites orbit Earth
Result
Helps satellite communication
Atmosphere
Meaning
Blanket of air surrounding the Earth
Protects life on Earth
Contains gases needed for breathing