The exposed portion of the
continental crust underlying North America refers to Canadian Shield. The continental
crust is known as the North American Craton which consists of rocks from the
Archean dn Proterozoic eons and extends from Mexico to Greenland. Canadian
Shield also produces great resources that helped most humans for their economic
development. Because of the resources present in the Shield, it has a great
disadvantage to settlers. The primary obstacle to population growth in the area
is the presence of the bare rock, thin soils, muskeg and insects.
Answer:
en realidad son alrededor de 7,8 billion de personas que viven en la tierra. pero la opción más cercana que has dado en 7.3 billon
Explanation:
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The consumer would have to make what they need themselves or find someone who can make what they need and of course pay them.
