Two percent of the ocean is coastal ocean-shallow coastal waters in wh

Question

Two percent of the ocean is coastal ocean-shallow coastal waters in which most fish live. The rest is deep ocean, where less fish live. Much of the garbage burned or dumped on land eventually is deposited in the coastal ocean. To keep coastal ocean free of garbage, therefore, garbage should be dumped in the deep ocean.

Which of the following. if true, constitutes the strongest basis for criticizing the argument above?

(A) Currents far below the ocean's surface bring deep-ocean waters to the coastal ocean.
(B) Deep-ocean dumping would require a substantial change in the processing and packaging of waste.
(C) Hazardous industrial waste has increasingly been dumped illegally into coastal-ocean waters.
(D) There are at present no international agreements regulating dumping in the deep ocean.
(E) The few species of fish that inhabit the deep ocean are of no commercial value.

sampriya · Answer

Two percent of the ocean is coastal ocean-shallow coastal waters in which most fish live. The rest is deep ocean, where less fish live. Much of the garbage burned or dumped on land eventually is deposited in the coastal ocean. To keep coastal ocean free of garbage, therefore, garbage should be dumped in the deep ocean.

Conclusion: garbage should be dumped in the deep ocean. 
reasoning: most fish live in coastal waters and dumping the garbage into deep ocean will keep the coastal ocean free of garbage.

underlying assumption:
1) if garbage is dumped into deep ocean; no new sources or new pollution causing things will be dumped into the coastal water.
2)dumbing garbage into the deep ocean does not effect the health of the coastal ocean

(A) Currents far below the ocean's surface bring deep-ocean waters to the coastal ocean.
This option is on line with our underlying assumption 2!- dumping garbage into the deep ocean will effect coastal water as the deep ocean water gets mixed up with coastal water due to the ocean currents!!-  CORRECT

(B) Deep-ocean dumping would require a substantial change in the processing and packaging of waste.
This option does nothing to prove the fact that dumping into deep oceans may or may not effect the coastal ocean!-  WRONG

(C) Hazardous industrial waste has increasingly been dumped illegally into coastal-ocean waters.
even if the dumping was legal or illegal the outcome was the same(pollution)- this option does not co-relate between deep ocean dumping and coastal sea waters- WRONG

(D) There are at present no international agreements regulating dumping in the deep ocean.
basically there is no problem with dumping into the oceans- no one to stop it- kind of a strengthener option -  180 WRONG

(E) The few species of fish that inhabit the deep ocean are of no commercial value
either ways we are not concerned with the commercial value we are more concerned with preserving their life.-  WRONG 
 
 therefore A is the correct option!

KeyurJoshi · Answer

Conclusion: Dump garbage in deep ocean to keep coastal waters clean and garbage-free.

A. Basically A says, "Dont dump garbage in deep ocean bc eventually it'll be in the coastal waters due to the waves"

B. Change in the packaging of waste - irrelevant.
C. Current dumping in coastal ocean - doesnt affect.
D. Present international agreement - irrelevant.
E. Commercial value of fish - irrelevant.

Two percent of the ocean is coastal ocean-shallow coastal waters in wh

Prep Toolkit

Top 5 GMAT Debrief Videos

615 to 715 in 15 Days (Ria's Strategies)

More than Quant/Verbal Abilities: Speed vs. Accuracy

745 with Only Self-Prep and GMAT Club

From 555 to 765: 210-point Improvement

Perfect 805 Score Debrief by Julia

My Rewards

GMAT Critical Reasoning (CR) Questions

Two percent of the ocean is coastal ocean-shallow coastal waters in wh

Prep Toolkit

615 to 715 in 15 Days (Ria's Strategies)

More than Quant/Verbal Abilities: Speed vs. Accuracy

745 with Only Self-Prep and GMAT Club

From 555 to 765: 210-point Improvement

Perfect 805 Score Debrief by Julia

My Rewards