Sinkholes are depressions in the ground caused by the collapse of the surface layer above underground caves or cavities. They are common in Texas and other areas worldwide due to natural processes that cause the ground above caves or voids to fall inward. While some believe sinkholes are caused by aliens, scientists attribute them to natural geological processes involving erosion underground.

1. SINKHOLES
Jhon Ander Gorostiza

2. Sinkholes
1. Sinkholes is a depression or hole in the ground caused by some form of
collapse of the surface layer.
2. In all over the world there are sinkholes, but is typical in Texas.
3. Scientist say that this phenomenon occurs because there is a cave under the
ground and the ground that is above the cave falls.
4. But, a lot of people believe that this phenomenon is made by aliens.