Passage I
Snow crab (Chionoecetes opilio) is a subarctic species of crab that is commercially fished in the Atlantic Ocean. Because snow crab are eaten by fish such as cod, the number of cod present in an area may affect snow crab populations. The figure below shows the mass of snow crab caught on the eastern Scotian Shelf in the Atlantic Ocean each year from 1980 through 1994. The figure also shows, for the same area, the estimated number of 1-to 3-year-old cod and the estimated number of 4- to 6-year-old cod present each year from 1980 through 1994.
5. Based on the figure, the mass of snow crab caught was closest to 500,000 kg in which of the following years?
Your Answer is
Correct Answer is B
Explanation
First of all, you can see that a line of conversion relationship is given below the figure, 1 metric ton=1000 kg, so the 500000 kg requested in the title is equivalent to 500 metric tons. Look at the figure, when the abscissa is 1987, the ordinate corresponding to the column is closest to 500