What is black ice?

Black ice refers to a thin layer of ice that can form on roadways, often making surfaces treacherously slippery. This type of ice is particularly dangerous because it can be nearly invisible, especially on asphalt, which is why it is termed “black” ice; the dark color of the underlying road can make the ice difficult to see.

Drivers may not realize that they are driving on it until they feel their vehicle lose traction. Black ice usually forms in specific conditions, such as when temperatures drop in the evening or early morning or when freezing rain coats the road. Awareness of black ice is crucial for safe driving, especially in winter months or in regions prone to cold weather, as it can result in accidents if drivers are not cautious.

The other options describe different winter weather phenomena or conditions that can affect driving but do not accurately define black ice. A thick layer of ice would be easier to identify and navigate than the thin, clear layer associated with black ice. Snow on the road can also create hazardous conditions, but it is distinct from black ice, which is specific to clear, thin ice making it particularly sneaky and difficult for drivers to detect. An oily surface on the road can create slippery conditions as well, but it doesn't refer to