Ice wedging causes what to be severely damaged?
an object ice roads lights fields trees vehicles arteries coastlines
A B C D E F G H
An ordinary ice road is therefore severely damaged by cracks induced by the traffic.
Ice wedging causes ice roads to be severely damaged.
Ice wedging causes what to be severely damaged? (A) an object (B) ice roads (C) lights (D) fields (E) trees (F) vehicles (G) arteries (H) coastlines