Question

The photo shows Old Faithful in Yellowstone National Park.

A column of water being blown into the air.

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.

Answer 1

The correct statement is the fourth: it is a geyser that formed because groundwater is heated by magma beneath the surface, producing periodic steam-driven eruptions (Old Faithful is a geyser in Yellowstone’s volcanic system).