Glacial ice is
A)formed from continual accumulation of snow that recrystallizes under its own weight into an ice mass over a period of many years.
B)generally less dense than snow and firn.
C)essentially the same as snow.
D)made of sedimentary rock.

Question

Quizplus · Accepted Answer

Glacial ice is formed from the gradual accumulation of snow over a long period (usually decades or centuries) that has undergone repeated cycles of melting and re-freezing, causing the snow grains to become larger and more compact. It is therefore not the same as snow. Additionally, glacial ice is much denser than snow and firn, so B is incorrect. Glacial ice is not made of sedimentary rock, so D is also incorrect.

Glacial Ice Is