What happens to snowflakes as they become progressively buried within glaciers?

Question

Quizplus · Accepted Answer

As snow is progressively buried within glaciers, it undergoes a process of compaction and metamorphism, which causes the snowflakes to fuse together and form interlocking crystals of ice, resulting in a denser, more compact material. Option A is incorrect because as the snowflakes are compressed and squeezed within the glacier, any trapped air would be forced out, resulting in a denser material. Option B is also incorrect because as the snow is buried deeper within the glacier, it is actually further insulated from the warmer air above, which would prevent melting. Option D may be true to some extent, as the trapped air can scatter light and create a brighter appearance, but this is not necessarily the primary effect of burial within glaciers.

What Happens to Snowflakes as They Become Progressively Buried Within