Q. Which of the following Volcano is most explosive in nature?

[A] Caldera

[B] Composite Volcanoes

[C] Shield Volcanoes

[D] Flood Basalt Provinces

Answer: A
Notes:

Explanation: Caldera is the most explosive of the earth’s volcanoes. They are usually so explosive that when they erupt, they tend to collapse on themselves rather than building any tall structure.

The collapsed depressions are called calderas. Their explosiveness indicates that the magma chamber supplying the lava is not only huge but is also in close vicinity.

Source: NCERT – Fundamental of Physical Geography