Multiple Choice
A hygrothermograph is used by the weather services to record temperature and relative humidity (see figure labeled "Hygrothermograph") . The lower part of the graph is used to measure relative humidity from 0% to 100%. The upper part of the graph is used to measure temperature from 10° F to 110° F. What is the relative humidity at 12:00 midnight? Use the data in the figure to answer this question.
A) 97 %
B) 76 %
C) 83 %
D) 87 %
E) 90 %
Correct Answer:
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