Large ________ extend for considerable distances and depths through rock. Below the surface, there is minimal separation between the blocks on either side.
A) vesicles
B) master joints
C) solution cavities
D) glory holes
E) faults
Question 2
The location of features, such as cliffs and valleys might be strongly influenced by the position of ________.
A) rocks which can be exfoliated
B) systems of microspaces
C) master joints
D) talus slopes
E) scree