Unit 1 - H/O 1 - Assignment 2    pp21-27   1.  How is the earth’s delicate balancing act, which keeps the sun’s incident energy, from destroying the earth achieved?   2.  How does the atmosphere protect the earth?   3.  What event allowed life to emerge from the sea?   4.  Heat income and heat expenditure for different parts of the world show large discrepancies, how does the earth solve this problem?   5.  What would happen if the answer to #4 did not take place?   6.  How does the wind transfer heat?   7.  What effect does the Gulf Stream have on Europe?   8.  How do clouds and rain affect global heat transfer?