Figure 20 shows isotherms for the United States.
(a) Which of San Francisco, Denver, and New York had approx-imately the same temperature as St. Louis?
(b) If you were in Kansas City and wanted to drive toward cool-er weather as quickly as possible, in which direction would you travel? What if you wanted to drive toward warmer weather?
(c) If you were leaving Kansas City, in which directions could you go and stay at approximately the same temperature?