Although the human population around the forestland in Middlesex County has increased, the amount of forestland has not been reduced. Therefore, the decrease in the county's songbird population cannot be attributed to the growth 'in the county's human population.
Conclusion: the decrease in the county's songbird population cannot be attributed to the growth 'in the county's human population.
SOLUTION REASONING: We need to find a statement which shows a decrease in songbird population is because of growth in human population
Which of the following, if true, most seriously weakens the conclusion above?
(A) As the human population of Middlesex County has grown, there has been an
increase in the number of shopping malls built. -
OUT OF SCOPE(B) The presence of
more garbage cans resulting from the increase in the county's human population ensures the
survival of more raccoons,
which prey on songbird eggs whenever available. -
CORRECT, IT SHOWS THAT GROWTH OF HUMAN POPULATION IS THE REASON(C) There has recently been a decrease in the amount of
rain-forest land in Central and South America, where songbirds spend the winter months. -
OUT OF SCOPE(D) Although several species of songbirds are disappearing from Middlesex County, these species are
far from being endangered. -
OUT OF SCOPE(E) The disappearance of songbirds, which eat insects, often results in
increased destruction of trees by insects. -
OUT OF SCOPE