1. Chapter 15 Atmosphere
Review Game

2. What percentage of the atmosphere is made up of Oxygen? 21%

3. 2) What percentage of the atmosphere is made up of nitrogen? 78%

4. 3) Why is the atmosphere important to living things
3) Why is the atmosphere important to living things? Provides all gases needed to survive

5. 4) What is photochemical smog? Interaction of pollutants and sunlight

6. 5) What is the biggest source of air pollution? Fossil fuels

7. 6) When a barometer is rising what is the air pressure doing? Rising

8. 7) When you go up in altitude what happens to the air density
7) When you go up in altitude what happens to the air density? Decreases

9. 8) Water in the form of a gas is called: (2 words) Water vapor

10. 11) Sulfur oxides and nitrogen oxides combine with water to produce: Acid rain

11. 12) What does a barometer measure? Air pressure

12. 13) Where does air pressure act on your roof? Above and below the roof

13. 14) How is an aneroid barometer different from a mercury barometer
14) How is an aneroid barometer different from a mercury barometer? Aneroid barometers do not use a liquid

14. 15) What happens to air pressure as altitude increases? It decreases

15. 16) The main layers of the atmosphere are classified according to what
16) The main layers of the atmosphere are classified according to what? Temperature

16. 17) The layer of atmosphere where weather occurs is called? Troposphere

17. 18) List the main layers of the atmosphere from the surface up: Troposphere, Stratosphere, Mesosphere, Thermosphere

18. 19)What does the ozone layers block? Ultraviolet light

19. 20) Which layer is closest to outer space? Thermosphere, (exosphere)

20. 21 Ozone gas is a form of oxygen with how many oxygen atoms? 3