the atmosphere

• The troposphere is where most weather occurs, with temperature decreasing as altitude increases.
• the atmosphere is an envelope of gas surrounding the earth
• the atmosphere is 78% nitrogen and 21% oxygen
• the atmosphere contains solids gasses and liquids
• smog is made of sulfur, nitrogen and oxygen
• sulfur is made from the burning of fossil fuels
• ozone protects us from UV radiation
• there are 5 layers in the atmosphere
• mesosphere is coldest part of earth
• air pressure decreases as altitude increases
• The troposphere is the densest layer of the atmosphere
• the stratosphere is the second layer of the atmosphere
• Radio waves pass through the ionosphere
• Exosphere is the fifth layer of the atmosphere
• what is smog made from?


  nitrogen, sulfur and oxygen