This illustration shows an area chart with two areas painted
yellow and green. The title of the chart says: "Temperature
Monitoring (in Degrees C)." The horizontal axis contains
numerical values from 1 to 31. The vertical axis contains the
following values: 0, 5, 10, 15, 20, and 25. The chart legend
indicates that the yellow area corresponds to April, and the
green area corresponds to May.