71. What is the name for the process by which glaciers move by flowing over bedrock?
a) Basal sliding
b) Internal deformation
c) Shear deformation
d) Plastic deformation
72. Which of the following is a type of glacial feature that forms when three or more cirques erode back into a single mountain peak?
a) Horn
b) Arete
c) Col
d) Valley
73. What is the name for the process by which glaciers move by deforming like a plastic material?
a) Basal sliding
b) Internal deformation
c) Shear deformation
d) Plastic deformation
74. Which of the following is a type of glacial deposit that forms when a glacier deposits sediment in a teardrop-shaped hill with a steep side facing up-glacier?
a) Esker
b) Kame
c) Drumlin
d) Moraine
75. What is the name for the process by which glaciers move by slipping and sliding along the rock beneath them?
a) Basal sliding
b) Internal deformation
c) Shear deformation
d) Plastic deformation
