Which of the following services or businesses would likely not be found in a lower-order settlement?
a.
a large farm
b.
a gas station
c.
a big-box department store
d.
a hospital specializing in cancer treatment

D is the correct answer. A hospital specialising in cancer treatment would require high technology and lots of funding, as well as specialist knowledge. This is not likely to be found in a lower order settlement.

Ithink the answer to that would be b):

Answerair masses develop near the equator are warm; tropical air mass