Q. Consider the following statements:
1.Volcanic vortex rings are formed due to the interaction of volcanic ash with magnetic fields in the Earth’s atmosphere.
2.Mt. Etna in Italy is known for its occasional volcanic vortex rings.
3.Stratovolcanoes are often associated with the generation of volcanic vortex rings.
How many of the statements given above are correct?
Explanation –
Statement 1 is incorrect. Volcanic vortex rings form primarily due to the interaction of ejected volcanic material and gases with the atmosphere during explosive eruptions. The rings are primarily driven by the dynamics of the gas release and its interaction with the surrounding air.
Statements 2 and 3 are correct. Mount Etna is known for producing volcanic vortex rings. The volcano has been referred to as “Lady of the Rings” due to its ability to emit these rare and visually striking formations. Stratovolcanoes, characterized by their steep, conical shape and periodic explosive eruptions, are known for producing impressive volcanic vortex rings due to the rapid ejection of gas and volcanic material during explosive eruptions. However, it’s important to note that other types of volcanoes can also generate vortex rings under specific conditions.
Source: The Hindu
