North America has one active margin and one passive margin. Where are they? Think about where there are lots of Earthquakes and places where
there aren't many earthquakes.

C. naturally in the environment

Aregion is an area of land that has common features. these features can be natural, such as climate or landscape. they can also be artificial, such as language or religion. the xinjiang uyghur autonomous region, above, is an area of china inhabited by uyghurs, a muslim group with ethnic ties to turkish people.