Q. 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?
Answer: D
Notes:
Exp) option d is the correct answer.
A volcano is a place where gases, ashes and/or molten rock material – lava – escape to the ground. The material that reaches the ground includes lava flows, pyroclastic debris, volcanic bombs, ash and dust and gases such as nitrogen compounds, Sulphur compounds and minor amounts of Chlorene, hydrogen and argon.
Source – NCERT – Fundamentals of Physical Geography – Chapter: Interiors of the Earth
