Suggested Answer
Pebbles usually become smooth and rounded by being polished by water, sand polished by winds, or by tumbling and exposing other sides to erosive effects.
Suggested Answer
The sea smooths it by washing over it lots
Pebbles usually become smooth and rounded by being polished by water, sand polished by winds, or by tumbling and exposing other sides to erosive effects.
The sea smooths it by washing over it lots