OXIDATION ALSO KNOWN AS RUSTING

PLANT WEDGING WHEN PLANT ROOTS GROW STRONG AND CRACK ROCKES

ANIMALS BROWW IN THE GROUND AND AND LET IN AIR AND WATER

PLANT WEDGING WHEN ROOTS GROW STRONG AND CRACK THE ROCK

Ants let in air and water

The the rock gets hot then cools down during the night

Plant wedging when the plants roots grow strong and crack the rock

MOSS PLANT WEDGING

RUST ROCK ACIDS COMBIE WITH MINERALS