Which magma is most likely to quench (congeal) to a natural glass?
A) highly viscous; cools quickly
B) highly fluid; cools slowly
C) highly viscous; cools slowly
D) highly fluid; cools quickly

Question

Quizplus · Accepted Answer

Highly viscous magma that cools quickly is most likely to quench to a natural glass because the rapid cooling prevents the formation of crystals, resulting in a glassy texture.

Which Magma Is Most Likely to Quench (Congeal) to a Natural