Microscopic bits of dust, smoke, salt, and other particles that ...

[jayhills49]

Microscopic bits of dust, smoke, salt, and other particles that commonly are mixed in with air molecules are called ___________________ .
  Fill in the blank with correct word.

Question 2

The ice-to-vapor phase change is called ___________________ _. If a water vapor molecule should attach itself to an ice crystal, the vapor-to-ice phase change is called ___________________ _.
  Fill in the blank with correct word.

[Ksanderson1296]

Answer to Question 1

ANSWER: condensation nuclei

Answer to Question 2

ANSWER: sublimation; deposition

[jayhills49]

Excellent

[strudel15]

Thanks for the timely response, appreciate it