Chapter 18-Glaciers & Glaciation Flashcards
1
Q
If Antartica’s ice completely melted the Earth’s sea level would rise about ____meters
A
65
2
Q
The elevation above which snow does not completely melt in the summer
A
Snow line
3
Q
Movement within a glacier
- ______ ______ movement within the ice
- ______ ______ meltwater acts as a lubricant
- Fastest flow is at the _____ ________.
A
- Plastic flow
- Basal slip
- Top center
4
Q
Budget a glacier
- Zone of ______ is where the accumulation of snow and ice formations occur
- Zone of ______is the area where there is a net loss of a glacier ice
A
- Zone of accumulation
- Zone of wastage
5
Q
Glaciers always flow ______ ______
A
Down hill
6
Q
A bowl-shaped depression, typically found at the head of a glacial valley
A
Cirque
7
Q
Moraine
________- An accumulation of debris on the side of the glacial till
A
-Lateral
8
Q
World’s largest ice sheet is in __________
A
Antarctica
9
Q
Most glaciers are about ____km thick
A
3
10
Q
Moraine
________-Created when two alpine glaciers converge
A
Medial
