Cave
From Conservapedia
This is the current revision of Cave as edited by DrSandstone (Talk | contribs) at 15:43, December 4, 2008. This URL is a permanent link to this version of this page.
A cave is an air- or water- filled void beneath the ground, where there is insufficient rock to prevent human access.
They can be formed by
- acidic rainwater, eroding away large of rocks such as limestone.
- lava cooling and solidifying - either in bubbles, or when the crust of a lava flow solidifies, while the still-liquid lava underneath moves on.
- waves - on coasts, waves can pound out caves in cliffs.
- erosion from wind or water
