Metal furniture rusting

More rapid in cool climates

decaying plants dissolving minerals

minerals dissolving in water

rocks falling and breaking

potholes forming in winter

air, water and salt rusting car parts

Halite in rocks dissolving in water

animals burrowing

Carbonic acid dissolving limestone

The wedging of tree roots along natural joints in granite

Limestone dissolved by carbonic acid

The oxidation of minerals that contain iron

Animals burrowing

Repeated freeezing and thawing of water that cracks rock

The action of water, salt and air on car parts

Acids from plant roots that break up rock

Formation of potholes

Raised sections of sidewalks along tree lined streets

Small rocks falling from a cliff

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