Physiological density measures the number of people per arable square mile
the number of farmers per square mile of farmland
the number of families per square mile
the number of factories per square mile of city
the number of people per inhabitable square mile

The answer is b. a pro-natalist

Like many students at university, you may be unhappy about the results you attain in exams. you may feel that even with all you are doing there must be something more -- or different-- you could be doing to get better grades. we have all at some time or other heard of that student who only studies a couple of hours for final exams and scores a's every time. we stand in awe of those who seem to breeze through without undue effort and seem to need very little in the way of studying to nail an exam. the reasons for success, in what i think are the vast majority of cases, are less esoteric than many students think: successful students consistently apply a series of productive strategies with view to attaining clearly identified learning and grade goals throughout the academic term.

It’s letter b because the area of the trapezoid is 72