Earth's Spheres

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Atmosphere

The atmosphere is the envelope of gases that surrounds the Earth or another planet. It is held in place by the gravity of the planet.
Interaction-Tornado
The atmosphere and the geosphere interact when a tornado occurs. A column of air makes contact with the Earth and causes damage to any structures or life on the ground by using strong winds that carry debris. 

Sources

www.labnews.co.uk

wikipedia>wiki>atmosphere