Consider the following: 1. Pyroclastic debris 2. Ash and dust 3. Nitrogen compounds 4. Sulphur compounds.…

Consider the following: 1. Pyroclastic debris 2. Ash and dust 3. Nitrogen compounds 4. Sulphur compounds. How many of the above are products of volcanic eruptions?
  1. Only one
  2. Only two
  3. Only three
  4. All four

Solution

All four — pyroclastic debris, ash and dust, nitrogen compounds (e.g., N2, NOx) and sulphur compounds (e.g., SO2, H2S) — are emitted during volcanic eruptions.

Asked in: UPSC Prelims 2024

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