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
Correct answer
Explanation
Volcanic eruptions throw out pyroclastic debris (rock fragments and volcanic bombs), ash and dust, and gases. NCERT lists these gases as mainly nitrogen compounds and sulphur compounds, with minor amounts of chlorine, hydrogen and argon. So all four are products of volcanic eruptions.
Physical Geography & Biogeography