Answer:
PHYSICAL
1. Ice wedging. Ice wedging causes many rocks to break. .
2. Plant roots. Plant roots can grow in cracks.
CHEMICAL
1. Limestone rocks dissolving in water
2. Plant roots growing through concrete and splitting it
3. Waves carrying sand away from the beach
BIOLOGICAL
1. weeds growing through cracks in the pavement.
2. rabbits and other burrowing animals can burrow into a crack in a rock, making it bigger and splitting the rock.
3.
