During the ice crystal process of rain formation,
A) only ice crystals need be present in a cloud.
B) ice crystals grow larger at the expense of the surrounding liquid cloud droplets.
C) the temperature in the cloud must be -40C (-40 F)or below.
D) the cloud must be a cumuliform cloud.

Question

Quizplus · Accepted Answer

During the ice crystal process of rain formation, ice crystals grow larger at the expense of the surrounding liquid cloud droplets. This process is also known as the Bergeron process. Option A is incorrect because the presence of liquid water in the cloud is necessary for ice crystals to form. Option C is partially correct as the temperature needs to be below freezing, but the specific temperature range is -4°F to -40°F (-20°C to -40°C). Option D is incorrect as the ice crystal process can occur in different types of clouds, including stratiform clouds.

During the Ice Crystal Process of Rain Formation