Atmosphere review

2. Water vapor condensed to create __________ which absorbed CO2 from the atmosphere
4. The atmosphere is composed of 21% of this element
7. The first atmosphere had lots of Carbon Dioxide because of __________ erupting
10. The second layer of the atmosphere that contains the Ozone layer
11. _____________ began photosynthesizing and increased the oxygen in the atmosphere
12. this front is warm air between two cold air masses
13. This layer is in the stratosphere and protects Earth from UV radiation
17. This biome experiences low pressure and rainfall for a majority of the year
18. The layer of the atmosphere where weather happens
19. this weather front brings warm, humid air
20. The international space station can be found in this layer of the atmosphere

1. This living organism helps convert nitrogen into a usable form
3. ___________ are created due to the tilt of the earth
5. the tool used to measure air pressure
6. This biome has very high air pressure which leads to little to no rainfall
8. This front stays in the same place for a while
9. This front is represented by small blue triangles
14. The layer of the atmosphere where meteors burn up
15. When the northern hemisphere experiences summer the southern hemisphere experiences this season
16. winds spin _____________ clockwise in the northern hemisphere