Class 26, ICA #22, October 23.

There were 2 clicker questions. For each
question you got 1 mark for answering at all.
There were a total of 2 marks possible.
The clicker questions count for a total of 3 points toward your
course grade, so your points for the day = # of marks * (3/2).




Clicker Question #1:  Water on Mars

A. appears to have sculpted some of its topography.



Clicker Question #2:  Greenhouse effect on Earth

C. currenlty gives us about 60 degrees F of warming.