When snow thaws and refreezes, which results in a loss of air and ...

[LCritchfi]

When snow thaws and refreezes, which results in a loss of air and pore spaces, the result is
  ___________________ _. Fill in the blank(s) with the appropriate word(s).

Question 2

The process by which ice evaporates directly from the surface of a glacier is known as
  ___________________ _. Fill in the blank(s) with the appropriate word(s).

[Jossy]

Answer to Question 1

firn

Answer to Question 2

sublimation

[LCritchfi]

TYSM

[amandalm]

Excellent