(a)[3]
Define the term population by filling in the sentence.
(b(i))[1]
Calculate the gap in population size between 1950 and 2010.
(b(ii))[1]
State which year the population size was 56 million.
(c)[3]
State three factors that may increase population size.
(d)[4]
Discuss the harmful environmental consequences of a continual rise in human population size.