Official 52 Lec 3
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Question 2 of 6
What does the professor say about the role of water vapor in snowflake formation?

A.

Too much water vapor prevents the initial "dinner plate" from forming

B.

Water vapor's role in snowflakes formation is not completely understood

C.

Water vapor molecules in snowflakes attract ice particles from the air

D.

Water vapor is necessary for snowflakes to be able to form branches

我的答案:

正确答案:D

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