If you want to locate the centers of high and low pressure systems, you will need a map that has:

Question

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Isobars are lines that connect points of equal atmospheric pressure, which makes them the best choice for locating centers of high and low pressure systems. Isodrosotherms are lines connecting points of equal dew point temperature, isotherms are lines connecting points of equal temperature, and contour lines are used for representing elevation on topographic maps.

If You Want to Locate the Centers of High and Low