Question

i. glacier formation
a. snow builds up
b. upper layers press down on buried layers of
snow and turn them into an ice mass
c. upper layers continue to compress the lower
layers and the ice mass becomes denser
ii. glacier movement
a. weight and pressure cause glaciers to move
outward and downward
b. v

1. valley glaciers - flow down valleys
2. continental glaciers (ice sheets) -

flow outward in all directions from
center
c. ways of moving

1. internal deformation - weight and

gravity cause glacier to spread

1. w

d. x

1. erosion - pushes rock and earth as it

moves

1. deposition - dumps rock and earth off

at the sides or the end of the glacier
22
which item best belongs in place of the v?
a. blizzard - a long and heavy snowstorm
b. main types of motion
c. alpine glaciers - glaciers surrounded by mountains
d. main types of glaciers

Explanation:

The section under \(V\) lists two types of glaciers (valley glaciers and continental glaciers). So, the main heading for this section should be about the main types of glaciers. Option \(A\) is about a snowstorm, not related to glacier types. Option \(B\) is about motion types (not relevant here as the sub - points are glacier types). Option \(C\) is just one type of glacier (alpine glaciers), while the sub - points under \(V\) show a broader category.

Answer:

D. main types of glaciers