During the winter months when the temperature falls suddenly, a new, thin sheet of ice that freezes over*^*already wet roadways is commonly called .
Question 1:
During the winter months when the temperature falls suddenly, a new, thin sheet of ice that freezes over*^*already wet roadways is commonly called ....... because it appears to be transparent over asphalt or concrete.*^*This kind of ice is very dangerous because it is transparent and difficult to see when driving on streets and*^*highways.
A.blowing snow
B.black ice
C.dense fog
D._
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