how are caves formed?
less water eruptions Water expanding storing water volcanoes by humans chemical erosion hard outer covering
A B C D E F G H
Erosion by acid solutions is only one way that caves form.
caves are made by chemicals in groundwater
how are caves formed? (A) less water (B) eruptions (C) Water expanding (D) storing water (E) volcanoes (F) by humans (G) chemical erosion (H) hard outer covering