Answer the following question given this paragraph: 

When hot water gently rises to the surface, it creates a hot spring . A hot spring forms where a crack in the Earth allows water to reach the surface after being heated underground. Many hot springs are used by people as natural hot tubs. Some people believe that hot springs can cure illnesses. Hot springs are found all over the world, even in Antarctica!.


Q: When hot water gently rises to the surface, it creates a what?

 Choices:

- steam cloud

- volcano

- fissure

- hot spring

A:
hot spring
