In science, density is the amount of mass per unit volume. Similarly, in economics, population density is the amount of population per unit area. That will be our basis in answering the questions for this problem.
Since there is no diagram given, I can't distinguish which island is in the left or right. I'll just assume that the first island is on the left, while the second island is on the right. Assuming they have the same population, the density would only have to matter with the area. From the given definition of population density, we write it in equation as:
Density = Population/Area
So if the area is large, the density would consequently be smaller. Therefore, you can see in the equation that density and area are inversely proportional to each other. We can deduce that the first island with the smaller land area of 486 mi² has a greater population density. When a place has a smaller area, the population density is much greater. Therefore, the answer to #1 is left, the answer to #2 is smaller, and the answer to #3 is more.
