Which practice is shared by all civilizations. A. Fighting in wars
B. Using Slash and Burning
C. Having cities near rivers or other bodies of water
D. Making everyone do the same jobs

d is the correct answer so you can write this answer

c

Explanation:

having cities near rivers or other bodies of water

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.

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