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?
(a). Only one
(b). Only two
(c). Only three
(d). All four
Explanation:
All four of the options listed are products of volcanic eruptions.
Pyroclastic debris is solid volcanic matter ejected from a volcano.
Ash and dust are fine-grained volcanic materials.
Nitrogen compounds are released into the atmosphere during volcanic eruptions.
Sulfur compounds, particularly sulfur dioxide, are also released in significant quantities.
Therefore, the correct answer is (d). All four.
