Full transformation into an active glacier begins when the snow and ice reach a depth of about
A) 40 feet.
B) 130 feet.
C) 90 feet.
D) 170 feet.
E) 70 feet.

Question

Quizplus · Accepted Answer

According to the National Snow and Ice Data Center, a depth of around 130 feet is required for snow and ice to transform into a fully formed glacier. This is due to the weight and pressure of the upper layers compressing and solidifying the lower layers into ice. Therefore, choice B is the correct answer.

Full Transformation into an Active Glacier Begins When the Snow