Cycles of freezing and thawing water cause 
exposure to cold the oak can fall mechanical weathering the looseness of soil In the winter Metling snow colder and wetter looseness of dirt or compost
A B C D E F G H
Ice wedging is the most important form of mechanical weathering.
cycles of freezing and thawing water cause mechanical weathering.
Cycles of freezing and thawing water cause  (A) exposure to cold (B) the oak can fall (C) mechanical weathering (D) the looseness of soil (E) In the winter (F) Metling snow (G) colder and wetter (H) looseness of dirt or compost