Question

a thin layer of ice crystals that form on earths surface when temperatures fall below freezing is called
a. sleet
b. freezing rain
c. frost
d. hail

Explanation:

• Sleet is frozen raindrops that fall as ice pellets, not a thin layer of ice crystals on the surface.
• Freezing rain is supercooled rain that freezes on contact with surfaces, forming a glaze, not a thin layer of ice crystals.
• Frost forms as a thin layer of ice crystals on Earth's surface when temperatures drop below freezing (freezing point of water, 0°C), as water vapor in the air directly sublimates or condenses and then freezes.
• Hail is large ice pellets or balls that form in thunderstorms, not a thin layer on the surface.

Answer:

C. Frost