Isoline maps use connecting lines and points that are equal value to portray distributions of numerical values continuously. These maps are often used for weather conditions such as different temperatures, wind speed, barometric pressure, and direction and sheer. This map displays different temperatures throughout the United States and Canada. Areas with the same temperatures are connected with different lines making this map a credible isoline map. The different colors are used to represent differences in temperature such as red being hotter than green areas which are cooler.
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