The occurrence of a sundog tells you that
A)the ice crystals are columnar in shape and are horizontally-oriented as they fall.
B)the ice crystals are platelike in shape and are horizontally-oriented as they fall.
C)the ice crystals are columnar in shape and are tumbling while they fall.
D)the ice crystals are platelike in shape and are tumbling while they fall.

Question

Quizplus · Accepted Answer

Sundogs or parhelia are formed when sunlight is refracted by plate-shaped ice crystals that are horizontally-oriented as they fall through the air. This creates a bright spot of light on either side of the sun, appearing like a "second sun". Columnar ice crystals or crystals that are tumbling while they fall do not create this specific phenomenon.

The Occurrence of a Sundog Tells You That