Here's a breakdown of why:
* Groundwater: Water found beneath the Earth's surface.
* Magma: Molten rock found beneath the Earth's crust.
* Heated: The magma heats the groundwater.
* Rises to the surface: The heated water, due to its lower density, rises to the surface.
* Collects in a natural pool: The water accumulates in a depression or basin, forming a pool.
Therefore, the term hot spring accurately describes this geological phenomenon.