This exam consists of two parts. The first part is worth 10 points, the second 12, distribute your time accordingly. The points are indicated by each question. Be sure to write your name legibly on all sheets you hand in. Show all your work.

1 a. Plot the following data on a single graph. The temperature and relative humidity were recorded near Mt. Vernon, Posey County, IN in August 1990 (7)

b. During what period did the temperature increase at the greatest rate? (1)

c. What was the rate of increase per hour for this period? (2)

2. Draw isohyets at 50 mm intervals on the figure below of Maui Island, Hawaii (6)

b. Isohyets are lines of equal value of _______________ (1)

c. Draw a cross-section to illustrate the variations along the transect B-B' (5)

d. Draw an arrow on the map to indicate the direction of the prevailing wind. On what did you base your answer? (2).