B2 2020 Purcell

2. absorbs a tremendous amount of energy from the sun, Northern Lights take place here
3. enters the atmosphere mainly through the burning of fossil fuels (coal, natural gas, and oil)
5. most of our water vapor and weather is found here
6. ozone layer, protects us from the UV rays from the sun
12. emitted during the production and transport of coal, natural gas, and oil
14. measures humidity (relative humidity or dew point)
16. occurs when a planet absorbs more energy from the sun than it can radiate back to space
18. (pause or sphere) - layers of the atmosphere
19. measures temperature
20. measures wind speed
21. (pause or sphere) - breaks between them
22. most abundant greenhouse gas that increases as the atmosphere warms
23. where the mesosphere ends and the thermosphere begins

1. where the troposphere ends and the stratosphere begins
4. emitted during agricultural and industrial activities, combustion of fossil fuels and solid waste, and the treatment of wastewater
7. measures the amount of precipitation
8. measures pressure
9. gas that was NOT a major part of the gases from the Early Atmosphere
10. measures wind direction
11. coldest temperatures in the atmosphere, meteorites burn up in this layer
13. number of layers in the atmosphere
15. a natural process that warms the Earth's surface
17. where the stratosphere ends and the mesosphere begins