Answer
You are seeing skylight.
Work Step by Step
As shown in Figure 28.22, what appears to be water on the road is actually skylight that hits the road at grazing incidence, and then refracts upward.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.