Ten Questions to test your knowledge about types of glacier

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1. Which of the following is essential to the definition of a glacier?
A glacier must flow
A glacier must be more than 10km long
A glacier must contain ice more than 100 years old
 

2. What is most of the ice in glaciers made from?
Recrystalized snow
Frozen sea water
Frozen river water
 

3. What is the thermal regime of a temperate glacier?
Most of the ice is at, or close to, the melting point
Most of the ice is between -5 and -10 degrees C
The ice melts in summer and refreezes in winter
 

4. Which of the following are topographically unconstrained?
Ice sheets
Cirques and valley glaciers
Outlet glaciers

5. Which is largest?
An ice field
A niche glacier
A mountain ice carapace
 

6. What term describes a glacier in which ice occurs at a range of diferent temperatures?
Multithermal
Polythermal
Thermodynamic
 

7. What is Malaspina Glacier  a good example of?
A surging glacier
A floating glacier
A piedmont glacier
 

8. What is Vatnajökull, (Iceland, a good example of?
An ice shelf
An ice sheet
An ice cap
 

9. Are icebergs glaciers, and is there a glacier at the north pole?
Yes
No
Yes and No
 

10. What minimum size is commonly used to define an ice sheet?
50,000 square km
25,000 square km
Completely covering its continent
 

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