The people living in Iceland today are descendants of the Norse who settled on Iceland, which was uninhabited in the 9th century. How were the Norse able to maintain the settlement of Iceland?

The answer is a but it also might be 7 so

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.

Answeroil-shale;