Great things to study for the chapter 15 test

1. What is atmosphere?
2. Why is the atmosphere important to living things?
3. Trapping energy from the sun allows what to happen?
4. What are the 2 most abundant gases in the atmosphere?
5. How much more nitrogen does Earth’s atmosphere contain compared to oxygen? What are their percentages?
6. Other than oxygen and nitrogen, what percent makes up Earth’s dry air?
7. What is ozone and how does it compare to oxygen?
8. What is water vapor?
9. What; in addition to gases, does air also contain?
10. Where does nearly ½ of all pollution come from and what/who cause it?
11. What is pollen?
12. What causes smoke to become dark?
13. What is photochemical smog?
14. What happens when sulfur oxides and rain combine?
15. How do you determine density, what formula would you use?
16. Why does air in the atmosphere have pressure?
17. What happens to air mass if the density increases/decreases?
18. Why doesn’t the roof of your house cave in? What about your desk? Why don’t they explode? (One complete answer will answer al of these questions)
19. What are millibars?
20. What are barometers? How many different kinds are there? Explain how they work.
21. What happens to air pressure as you rise farther into the atmosphere?
22. Why is it harder to breath as you climb a mountain?
23. What determines how the layers of the atmosphere are classified?
24. Which layer of the atmosphere does weather occur?
25. From Earth to space, name the main layers of the atmosphere?
26. What layer is the ozone in and what does the ozone do for the atmosphere?
27. What is the first layer of atmosphere an astronaut passes through during re-entry from space?
28. What layer of the atmosphere are radio waves reflected back to Earth?
29. What is air pressure?
30. What does it mean to be in a vacuum?
31. What part of the thermosphere would satellites orbit in?
32. What happens in each layer of the atmosphere?
33. Name all layers of the atmosphere and know what takes place in each layer.