What is an ice quake?

a. The force of that creates a wave
b. Ice that is smashed and ground together to form pressure ridges
c. The force that determines a wave's size
d. An ice shear zone where waves collide


ANS: B
The segment about Dr. Steger’s arctic foothold being jeopardized by huge waves moving beneath the
ice is describing the movement which is like an earthquake at sea. Ice the size of city blocks are
falling and being smashed and ground together creating an ice quake. Information can be found in the
section Insight to a National Geographic Explorer

Environmental & Atmospheric Sciences

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Fill in the blank(s) with correct word

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