The argument states that Country B needs to implement stricter waste disposal regulations to improve the cleanliness of its rivers. The argument is based on a comparison with Country A, where river pollution is lower, and assumes that the stricter regulations in Country A are the main reason for this difference.
To weaken the argument, a statement must show that factors other than regulations could explain the difference in pollution levels, or that implementing stricter regulations might not lead to the desired improvement in Country B.
Now let’s evaluate each option:
(A) Industrial facilities in Country A are technologically more advanced and inherently produce less waste than those in Country B.
Analysis: This weakens the argument by suggesting that lower pollution in Country A is due to technological differences, not regulations.
Result: Weakens the argument.
(B) Country A has a more extensive natural wetlands system that naturally filters pollutants better than the river systems in Country B.
Analysis: This weakens the argument by indicating that the cleaner rivers in Country A are due to natural features, not stricter regulations.
Result: Weakens the argument.
(C) The government of Country A invests heavily in water purification technologies that are not yet economically feasible in Country B.
Analysis: This weakens the argument by showing that the lower pollution levels in Country A are a result of water purification investments, not stricter waste regulations.
Result: Weakens the argument.
(D) After a neighboring country with similar industrial outputs as Country B adopted waste disposal regulations like those in Country A, there was no significant improvement in river pollution levels.
Analysis: This weakens the argument by providing evidence that stricter waste regulations may not actually reduce pollution levels.
Result: Weakens the argument.
(E) Country B's rivers have a higher flow rate, which naturally disperses pollutants more effectively than the slower-moving rivers in Country A.
Analysis: This does not weaken the argument because it does not explain why Country B’s rivers remain polluted despite having a flow rate that disperses pollutants. It merely discusses flow characteristics but does not undermine the idea that stricter regulations might help.
Result: Does not weaken the argument.
Answer: (E)