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 ?

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Correct answer: All four. A volcano is an opening or rupture in the Earth’s crust through which molten rock (magma), gases, and ash es- cape from beneath the surface. When magma reaches the surface, it is called lava. Volcanic eruptions can shape mountains and is- lands, affecting both the environment and climate. Example : Mount Etna(Italy), Kilauea (USA) The materials that reach the Earth’s surface in volcanoes in- clude :  lava flows  pyroclastic debris  volcanic bombs  ash and dust  gases such as nitrogen compounds  sulphur compounds  minor amounts of chlorine, hydrogen and argon etc. SUPER HINT You can try, The &quot;NOT&quot; approach for all statements, this tests the improbability of negating a statement—if denying its impact seems highly unlikely, the statement is plausibly true. For example: Can I deny Pyroclastic flow, or gases or ash are not products of Volcanoes? Likely No!, Hence all are likely true. 95

Consider the following :1. Pyroclastic debris2. Ash and dust3. Nitrogen compounds4. Sulphur compoundsHow many of the above are products of volcanic eruptions ?

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Consider the following :1. Pyroclastic debris2. Ash and dust3. Nitrogen compounds4. Sulphur compoundsHow many of the above are products of volcanic eruptions ?

Practice more Geography PYQs

More UPSC Geography PYQs