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?

because of their intelligence

Explanation:

hope its help full

answer:

d. because dr. laguardia selected a widely used measure, his study generalizes to has strong external validity. external validity has limited external validity. other applications of this measure.

the widely used measure that he applied to his experiment was the benton facial recognition test. it employed on to football players and as result, only players who suffered brain concussions did not pas this test. and although it has an external validity, it is limited because it isn't general to apply to other population.

what words? are you talking about to complet what sentence