Exam-1 Answer key
 1=E;   2=B;   3=B;   4=D;   5=A;   6=D;   7=A;   8=E;   9=A;  10=A

11=A;  12=C;  13=A;  14=B;  15=D;  16=B;  17=A;  18=C;  19=A;  20=B

21=D;  22=C;  23=B;  24=C;  25=A;  26=C;  27=C;  28=A;  29=A;  30=E

31=C;  32=B;  33=A;  34=C;  35=C;  36=E;  37=C;  38=E;  39=C;  40=B

41=A;  42=D;  43=B;  44=A;  45=B;  46=C;  47=A;  48=D;  49=D;  50=B
NOTES:

  11. Effectiveness of Sun's rays striking Earth's surface vary from a maximum angle of incidence of
        90 degrees (straight down) to 0 degrees -- parallel with the surface; not striking it.

  13. Chlorine is the culprit.  This was illustrated well in the video shown in the lecture.

  16. Libya (North Africa) as shown on the thermometer scale figure in the text and webbed notes.

  20. The question was written in the converse (reverse) sense from how you probably learned it.
         From time to time, you will be asked to think about relationships on test questions.

  21. Time referencing is with respect to GMT (Greenwich Mean Time) and/or UTC (Universal
         Coordinated Time), both of which are for the time zone straddling London and Greenwich,
         England.  The Prime Meridian passes through Greenwich.

  23. The hour on the clock is the same on both sides of the International Date Line, but one sets
         the calendar day ahead or back when crossing, depending on the direction travelling.

  27. Daylight time as adopted in England during World War I (19-teens) was to save energy.  In
        contemporary U.S.A., it is to have fun in late Spring, Summer and early Fall evenings.

  30. The Tropics of Cancer and Capricorn mark the farthest North and South, respectively that Sun
         is directly overhead at noon. This is shown in Table 2-2 in the webbed notes and in the text.

  31. At the Arctic Circle, Sun does not set for 6 months, not 24 hours.

  32. Know the technical words.  There was absolutely no "trick" here, just knee-jerk reaction.

  37. This question is more challenging because it requires you to consider several aspects of the
         color of objects, plus reflection, absorption and reflection.

  38.  The answer to this question was emphasized during the in-class lecture.

  42.  The stratosphere is two atmospheric layers too low.  You are guessing.