What grinds rocks over time?
deltas erosion Time and energy weathering Echinoderm. deuterostomes amoebae bullfrogs
A B C D E F G H
Winds grind down rocks.
weathering grinds rocks down
What grinds rocks over time? (A) deltas (B) erosion (C) Time and energy (D) weathering (E) Echinoderm. (F) deuterostomes (G) amoebae (H) bullfrogs