Question

as humans have spread over the landscape, we have invaded the natural habitats of wildlife. highways and roads in particular form barriers preventing wildlife from reaching other parts of their ecosystem. when animals cross a highway, they risk being hit by cars and trucks. this is a dangerous situation not only for the animals but for the people driving as well. one way engineers are combating this danger is by creating overpasses or underpasses for wildlife along their habitual migration paths. what is the purpose of the final sentence in this passage? eliminate 3 incorrect answers. a to identify how many animals are killed per year on highways b to criticize the idea of wildlife overpasses and underpasses c to further explain the danger of animals crossing highways d to present a solution to the dangerous problem of wildlife crossing highways

Explanation:

The final sentence mentions engineers creating over - passes or under - passes for wildlife, which is a solution to the problem of wildlife crossing highways. Option A is incorrect as the sentence doesn't mention the number of animals killed. Option B is wrong since it's not criticizing the idea but presenting it as a solution. Option C is incorrect as it's not further explaining the danger but offering a solution.

Answer:

D. To present a solution to the dangerous problem of wildlife crossing highways