The Earth’s Atmosphere Chapter 1
The Importance of Atmosphere The atmosphere helps regulate earth’s temperature It also protects the earth from harmful UV radiation
Composition Nitrogen (78%) and oxygen (21%) are the main gases in the atmosphere. The other 1% are… Argon Carbon Dioxide Others…
Atmosphere Layers The layers of the atmosphere are defined by temperature Troposphere Stratosphere Mesosphere Thermosphere Exosphere
Troposphere It is where we are Contains 75% of the atmosphere’s gases (nearly) All weather occurs here
Stratosphere Contains the highest amount of ozone molecules (O3)
Mesosphere Have you seen a ‘shooting star’? Not really a star, just something breaking up in the mesosphere
Thermosphere The temperature is very, very high