Glaciers
Geo 12
Name _______________
Indicate the correct response for the multiple choice questions below.
1. Which of the following is true of all glaciers?
(a) are static and do not move
(b) exist in the Southern Hemisphere only
(c) exist in the polar regions only
(d) originate on land
(e) originate at sea
2. All glaciers move by:
(a) calving
(b) brittle flow
(c) melting
(d) plastic flow
(e) wastage
3. In a valley glacier, the toe will advance if:
(a) wastage and accumulation are equal
(b) wastage in the zone of accumulation is greater than the wastage in the zone of wastage
(c) accumulation is greater than wastage
(d) all of the above are possible
4. If accumulation is equal to wastage, the toe of a glacier:
(a) will move forward or advance
(b) will move backward or retreat
(c) can both retreat and advance
(d) remains stationary
(e) calves
5. When a glacier retreats:
(a) the toe of the glacier disappears
(b) the toe of the glacier moves ahead
(c) the glacier flows uphill
(d) the toe moves in an opposite direction to the flow of the glacier
(e) the toe remains stationary
6. Compare and contrast valley and continental glaciers by completing the following table.
7. For each of the following situations, which glacier or component of the glacier would move at a faster
rate? Be sure to explain your reasoning.
a) a valley glacier on a steep slope compared to a valley glacier on a shallow slope?
b) a thick glacier compared to a thin glacier?
c) a glacier in winter compared to a glacier in summer?
d) Central portion of a valley glacier compared to its sides?
e) the surface of a glacier compared to its base?
8. How can glacial ice be compared to a metamorphic rock?