Atmosphere - Is the gaseous outer layer that sorrounds the earth, Nitrogen - The most part of air is composed by (N2) with a 78%, Thermosphere - Here aurora borealis take place, Stratosphere - Here is includes the ozono layer , Exosphere - Is the furthest layer from the earth, Thermometer - It mesures temperature, Clouds - They form when rising air cools, Wind - This is air in motion, Cold front - Occurs when a mass of cold air moves towards a mass of warm air, Fog - Low clouds that form close to the ground, Hail - Occurs when there are strong rising air currents inside the cloud, Carbon dioxide - This is necessary for the photosyntesis, Gases - They are produce by combustion,

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