Frost action occurs as water seeps into tiny cracks in the rock and freezes at night.
(Frost action; occurs; T:as water seeps into tiny cracks in the rock and freezes at night) (water; seeps; into tiny cracks in the rock and freezes at night)
Frost action water
occurs seeps
T:as water seeps into tiny cracks in the rock and freezes at night
into tiny cracks in the rock and freezes at night