What things are needs and What things are wants?

things that we need are, food, clothes, and things to drink (not just water)

things we may want, we may want to buy paint to repaint just because your tired of the color of you room, you may want to bye a couple of gaming computers when you only need one (im a PlayStation person)

Explanation:

answer; the correct answer is (travel horizontally);

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.