Homework 4, due wed oct 21, 2009
			ENVR 30: Fall 2009 

1. Write a one paragraph review of the Prof. Tom Murphy's lecture.  Include
	the main points he made, as well as a critique of the delivery, with
	more emphasis on the lecture content than delivery style.

2. Write a one paragraph review of the Prof. Eric Martin's lecture.  Include
	the main points he made, as well as a critique of the delivery
	with more emphasis on the lecture content than delivery style.

3. If something grows exponentially at 10%, per year how much
	larger has got after 300 years?
 a. 2,600 times larger
 b. 2.6 million times larger
 c. 2.6 billion times larger
 d. 2.6 trillion times larger
 e. 2.6 quadrillion times larger

4. The ocean currents are caused ultimately by
 a. climate motion
 b. coriolis force
 c. solar energy
 d. tidal motion
 e. migration of whales

5. During El Nino 
 a. the normal flow of pacific currents from west to east is partially reversed
 b. the normal flow of pacific currents from east to west is partially reversed
 c. the height of the atlantic ocean increases
 d. the height of the atlantic decreases
 e. none of the above

6. If California moves at 2 inches per year relative to the Pacific Plate,
how far will it have moved after 10 million years?

7. An earthquake that is 8 on the Richter scale is how much stronger than
	an earthquake that measures 5 on the Richter scale?
 a. 3 times stronger
 b. 10 times stronger
 c. 30 times stronger
 d. 100 times stronger
 e. 1000 times stronger

8. Name 3 things policy changes that might reduce the current rapid depletion 
  of resources.

9. Consider resource management under Net yield, MSY, and OSY ideologies.
 Which ideologies would give the smallest, medium, and largest harvest
 respectively of the resource in question?
 a. Net yield, MSY, OSY
 b. MSY, OSY, Net yield
 c. OSY, MSY, Net yield
 d. Net yield, OSY, MSY
 e. OSY, Net yield, MSY
 f. MSY, Net yield, OSY

10. Try to find out what happens to the glass and the paper
you put into the recycling bin.
  What fraction of it is actually remelted and used to make new glass, or
  turned into pulp and reused?
  (Hint:  try googling, calling trash agencies, environmental groups, etc.)

11. List the following in order of amount to total energy available on Earth,
from most to least.  (Don't worry if you can't get them all correct)
a. Nuclear
b. Coal
c. Natural Gas
d. Solar
e. Wind
f. Tidal
g. geothermal
h. wood
i. oil 

12. Name five forms of energy NOT listed in question 11 above.