When outer layers of rocks peel away from changes in outside temperature

When a rock breaks into small pieces because water gets into cracks and expands and freezes

When water dissolves minerals in rocks making them weaker

Oxygen mixes with other elements to weaken rocks ( iron + oxygen)

When wind or water moves small particles that hit and break down rough rocks

When acids chemically break down rocks, caused by living organisms on the rock

Plant acid (humus), water, and oxygen are all agents of ___________

Water will _____________ when it freezes, causes rocks to break apart

Chemical weathering occurs ___________ when there is more surface area

The darkest and richest soils are found in the ___________

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