Marine Biologist: Deep-sea coral reefs near hydrothermal vents thrive only when the ambient water temperature remains strictly between 4°C and 8°C. A planned geothermal energy extraction facility near the Pelagia Rift will discharge cooling water that increases the surrounding deep-sea water temperature by 5°C. Because the current baseline temperature of the Pelagia Rift is 5°C, constructing this facility will inevitably destroy the deep-sea coral colonies residing there.
Which of the following are assumptions on which the marine biologist's argument depends? (Select all that apply.)
- There are currently living deep-sea coral colonies residing in the area of the Pelagia Rift that will experience the temperature increase.Cevap
- The increase in water temperature resulting from the facility's discharge will not be fully counteracted by colder natural ocean currents in the rift.Cevap
- CPreventing the construction of the geothermal facility is sufficient to ensure the permanent survival of the Pelagia Rift coral colonies.
- DAny marine ecosystem with an ambient water temperature between 4°C and 8°C will naturally develop thriving deep-sea coral colonies.
- EDeep-sea corals are the single most ecologically critical organisms living in the Pelagia Rift.
Cevap
The argument depends on the assumptions that living deep-sea coral colonies currently inhabit the area subject to warming, and that natural cold currents will not completely offset the facility's thermal discharge.
Both selected statements are essential to the conclusion. If there are no coral colonies currently residing in the affected rift zone, constructing the plant cannot destroy them. Likewise, if natural currents were to neutralize the heat discharge such that the temperature never exceeds 8°C, the destruction would not be inevitable. Negating either statement causes the conclusion to fail.
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Identifying required foundational assumptions using the Negation Test
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