PT142.S2.Q10 > Question

SECTION 1 · lr

Question 1 Question 2 Question 3 Question 4 Question 5 Question 6 Question 7 Question 8 Question 9 Question 10 Question 11 Question 12 Question 13 Question 14 Question 15 Question 16 Question 17 Question 18 Question 19 Question 20 Question 21 Question 22 Question 23 Question 24 Question 25

SECTION 2 · lr

SECTION 3 · rc

PASSAGE 1

Question 1 Question 2 Question 3 Question 4 Question 5 Question 6 Question 7 Question 8

PASSAGE 2

Question 9 Question 10 Question 11 Question 12 Question 13 Question 14 Question 15 Question 16

PASSAGE 3

Question 17 Question 18 Question 19 Question 20 Question 21

PASSAGE 4

Question 22 Question 23 Question 24 Question 25 Question 26 Question 27

SECTION 4 · lr

Agricultural runoff from a river has caused phosphorus levels to double in an ocean region.

The phosphorus causes the stimulation of plankton growth near the ocean surface.

The plankton decay and fall to the floor, where bacteria eat them and consume oxygen.

This oxygen depletion means that few fish can survive in the region.

The agricultural runoff and the phosphorus contribute to the plankton growth, the oxygen depletion, and the fishes’ inability to survive in the region.

Very strongly supported. The agricultural runoff contributes to the growth of plankton because it caused phosphorus levels to double, which in turn caused the stimulation of plankton growth.

Unsupported. Higher phosphorus levels have contributed to fish being unable to survive in the region. But we don’t know whether most fish could survive before phosphorus levels doubled.

Unsupported. If the agricultural runoff stopped, there might be fewer plankton and fewer bacteria devouring decaying plankton. But we don’t know that there would be no bacteria devouring decaying plankton.

Unsupported. Agricultural runoff has caused phosphorus levels to double in the past few decades. This doesn’t mean that the runoff itself has doubled in the past few decades.

Unsupported. It’s true that in this specific region, the water’s oxygen levels have decreased as its phosphorus levels have increased. But this is due to a particular chain of events. We don’t know that oxygen and phosphorus levels are inversely proportional in general.

PrepTest 142 - Section 2 - Question 10

Difficulty

Analysis

Answer Popularity

Question history

Confirm action