Why was the Oregon Trail such a popular route to the west?

Everything from California to Alaska and between the Rocky mountains and the Pacific ocean was a British health territory called oregon. the trail pointed the way for the United States to expand Westward to achieve what politicians of this day called manifest destiny to reach from sea to shining sea.

Explanation:

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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.

aliens are not real, the myth was created about 700 years ago because people found markings in the field of their crops. also, no there were no aliens on the moon.

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