Answer:
Movement in the mantle caused by variations in heat from the core, cause the plates to shift, which can cause earthquakes and volcanic eruptions.
Maps have a legend at the bottom of the map that tells you what each symbol means. The other things are not seen on a map.
What is there any options ? <span>
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Minnesota<span>, </span>Wisconsin<span>, Illinois, </span>Indiana<span>, </span>Michigan<span> and </span>Ohio<span>. </span>
