Climate Change · Botany

Which gas is primarily responsible for the cooling effect sometimes seen after large volcanic eruptions?

  1. Carbon dioxide
  2. Sulfur dioxide
  3. Water vapor
  4. Methane
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Correct answer: Sulfur dioxide

Volcanoes emit sulfur dioxide, which forms sulfate aerosols in the stratosphere. These particles reflect incoming sunlight back into space, causing a temporary cooling of the Earth's surface.

Difficulty: Medium Question 17 of 20

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