Astro 150 Spring 2005 Exam 1, version c

   1- d        11- d        21- b (also accepted a)
   2- c        12- b        22- a
   3- d        13- d        23- d
   4- b        14- e        24- b
   5- d        15- d        25- d
   6- c        16- c        26- d
   7- b        17- c        27- d
   8- d        18- d       (28- c)
   9- a        19- b        29- d
  10- a        20- d        30- b
                            31- a