The growth of a precipitation particle by the collision of an ice crystal (or snowflake) with a supercooled liquid droplet is called
a. accretion.
b. spontaneous nucleation.
c. condensation.
d. deposition.
e. collision.
Question 2
Contact freezing is
a. the freezing of supercooled droplets by contact with a nucleus.
b. the sticking together of ice crystals to make a snowflake.
c. the joining of many nuclei to form an ice nucleus.
d. the freezing of supercooled droplets when they come into contact with a supercooled surface.
e. the sticking together of any type of nucleus.
Global Distribution of Precipitation
Crystal structures of RNA polymerases
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