PRACTICE QUIZ FOR SEA ICE & PERMAFROST
Geos 101 Sects. 2 & 4H
Read each question carefully before you answer.
Click on the letter of the best answer.

1. The normal rate of mountain glacier movement _____ the normal rate of sea ice flow.

   a. cannot be compared to

   b. is greater than

   c. is less than

   d. is the same as

2. Permafrost only occurs North and South of

   a. 70 ^o Latitude

   b. 50 ^o Latitude

   c. 30 ^o Latitude

   d. 0 ^o Latitude

3. The normal extent of sea ice is greatest in

   a. The Arctic in January

   b. The Arctic in July

   c. The Antarctic in January

   d. The Antarctic in July

4. An opening in sea ice, caused by sea ice flow is a (an)

   a. albedo

   b. oolith

   c. polynya

   d. pressure ridge

5. The maximum depth of permafrost is about

   a. 500 m

   b. 1000 m

   c. 1500 m

   d. 2000 m

[RETURN to 101 Sect. 2 & 4H Practice Exams]