Which statement correctly identifies old faithful and explains how it formed?

it is a caldera formed from a vent collapsing.
it is a mud pot formed from pools of boiling, acidic mud.
it is a volcanic neck that formed as a result of magma that never erupted.
it is a geyser that formed due to water heated by magma erupting at earth’s surface.

It is a geyser that formed due to water heated by magma erupting at Earth’s surface.

Explanation:

Option (4)

Explanation:

In volcanic areas, some of the surface water percolates downward through the cracks and fissures present in the rocks and it eventually comes in contact with the deeper rocks, that are heated by the hot uprising magma. These are areas of shallow depth where the magma is at a much closer distance to the surface of the earth. This water then gets heated up by this heat flow, as a result of which the water becomes warm and less dense and rises upward. It then erupts at the surface, forming a hot-spring. These hot-springs are known as geysers.

Thus, the correct answer is option (4).

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