Class 27, ICA #23, October 26.

There were 3 clicker questions. For each
question you got 1 mark for answering at all.
There were a total of 3 marks possible.
The clicker questions count for a total of 3 points toward your
course grade, so your points for the day = # of marks * (3/3).




Clicker Question #1:  Which schematic is accurate?

A.



Clicker Question #2:  Which schematic is accurate?

D. 


Clicker Question #3: Mars has only a small greenhouse effect because

C. its atmosphere is thinner than Earth's despite having
a lot of carbon dioxide.