When night becomes very cold, X freezes to form Y. What can be X and Y here?
----------- X--------Y
AHail--------Snow
BDew--------Frost
CFrost--------Dew
DSnow-------Hail
When night becomes very cold, X freezes to form Y. What can be X and Y here?
----------- X--------Y
AHail--------Snow
BDew--------Frost
CFrost--------Dew
DSnow-------Hail