Naval Science 2: Nautical Sciences, Unit 3, Chapter 1 Homework / Extra Credit Assignment.
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1. What are the two main elements in our atmosphere and the approximate percentages of each?
2. What changes occur to the air as one ascends into the atmosphere?
3. Where does most of Earth's weather occur?
4. What are the five principal layers of Earth's atmosphere?
5. Answer BOTH of the following questions in the space below:
A) In what layer of the atmosphere are most clouds found?
B) What are the laws of gases that apply to the development of clouds?
6. Why have the United States and several other countries studied Antarctic air masses in recent years?
7. Answer BOTH of the following questions in the space below:
A) What is the tropopause?
B) Why is it so important to commercial aviation?
8. What are some of the current studies concerning the jet stream, and why are these studies important?
9. Why do modern commercial aircraft prefer to fly mostly in the stratosphere?
10. What visual phenomenon occurs in the ionosphere over the polar regions?
11. What is the importance of the ionosphere to communications?
12. Answer BOTH of the following questions in the space below:
A) What is the average air pressure at sea level?
B) What instrument measures air pressure?
13. Answer BOTH of the following questions in the space below:
A) What are the two types of barometers used by the Navy?
14. What is weather?
15. What three things cause changes in the weather?
16. What is the "greenhouse effect"?
17. Answer BOTH of the following questions in the space below:
A) What are the two most widely used temperature scales?
B) What are the freezing and boiling points of each?
18. What is the water cycle?
19. What is the dew point?
20. What instrument measures relative humidity and dew point?
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