What might happen to make a producer decrease his or her supply of a product ?

if a producer decrease his or her  product its probably because the product isnt no longer popular or there was a defect in the product

an aneroid barometer is different from a mercury barometer in that it provides readings that increase as air pressure increases.

hope it : )

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.