What are canyons formed by?
clouds stars erosion loose soil wind ice wedging rainwater calcite
A B C D E F G H
Rivers, rainwater, well water and most lakes contain fresh water.
canyons are formed by rainwater
What are canyons formed by? (A) clouds (B) stars (C) erosion (D) loose soil (E) wind (F) ice wedging (G) rainwater (H) calcite