In the summer of 1992, a significant volcanic eruption occurred in the Andes Mountains of South America, leading to a noticeable drop in temperatures across the continent. This suggests that volcanic eruptions can lead to a cooling effect on the atmosphere.

Which of the following statements, if true, most seriously undermines this conclusion?

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Correct answer marked below

A recent study found that the cooling effects of volcanic eruptions can be offset by increased solar activity during the same period.

Correct

There is a documented correlation between volcanic eruptions and increased rainfall in Southeast Asia.

Following the eruption of Mount Pinatubo in 1991, temperatures in the region remained stable and did not show significant drops.

The cooling caused by volcanic eruptions is often temporary and does not affect long-term climate trends.

A volcanic eruption in the Arctic in 1985 resulted in warmer temperatures in the surrounding areas.

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Official Explanation

Official

The argument states that volcanic eruptions lead to a cooling effect on the atmosphere. To weaken this argument, we need evidence that suggests volcanic eruptions do not necessarily cause cooling. The statement that 'A recent study found that the cooling effects of volcanic eruptions can be offset by increased solar activity during the same period'…

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Comments

GabrielMay 2, 2025

Great question!

HuseynJan 3, 2024

Great question!

DragoșJun 2, 2024

Greatt

What this question tests

What it tests

Whether you can identify the option that most undermines an argument's conclusion.

Common trap

Choosing an irrelevant objection or one that attacks the premise rather than the reasoning.