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Critical Reasoning: Inference Questions

Every year a large percentage of the population of loggerhead and leatherback turtles are killed by deep-sea fishing. To protect land animals, habitats of endangered species are fenced off and monitored. This method of protection cannot be implemented in ocean habitats that change position in three dimensions.

If the statements above are correct, they most strongly support which of the following?

Good work!

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This answer choice correctly concludes that in order to save the turtles, a specific method of protecting ocean habitats would have to be developed (because the land methods are ineffective in the sea).

Incorrect.

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This conclusion makes too great a leap from the premises given. We cannot just assume that conservationists are not working hard enough.

Incorrect.

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This conclusion makes too great a leap from the premises given. Although the argument does not provide a solution to the problem, we cannot assume that it will never be solved.

Furthermore, nothing in the premises allows us to conclude that the rate of extinction is so quick as to eradicate the population of these species so quickly. Other assumptions would be needed for this conclusion to be true (i.e. that the species were also not reproducing quickly enough, for example). 

Incorrect.

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The argument does not mention anything about other sea animals. This answer choice presents new information that resembles an additional premise. Unfortunately, you should be looking for a conclusion based upon the current premises.

Incorrect.

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This conclusion makes too great a leap from the premises given. Although it may be a legitimate suggestion, it is not supported by the argument.

A method for the protection of moving habitats would have to be developed and implemented to solve the problem of endangered turtles.
Conservationists are not working hard enough to develop a protection method for every kind of habitat.
In a matter of a few years, loggerhead an leatherback turtles will no longer inhabit the oceans.
Other sea animals are also harmed by the fishing industry, and will also become endangered unless the problem is solved.
To control and monitor a three-dimensional ocean habitat, an infrared tagging system should be used.