When ice causes rocks to crack by expanding in openings, what is this called?
In the winter smoking icing fissures of hot, acidic water mechanical weathering graptolites Inches or fractions of inches. rocking
A B C D E F G H
Ice wedging is the most important form of mechanical weathering.
when ice causes rocks to crack by expanding in openings, this is known as mechanical weathering 
When ice causes rocks to crack by expanding in openings, what is this called? (A) In the winter (B) smoking (C) icing (D) fissures of hot, acidic water (E) mechanical weathering (F) graptolites (G) Inches or fractions of inches. (H) rocking