Final answer:
Bridges and overpasses do not freeze first because of air-flow around them, but rather due to the temperature of the surrounding air and their exposure to it.
Step-by-step explanation:
The statement is False.
Bridges and overpasses do not freeze first because of the air-flow around them. The freezing of bridges and overpasses is influenced more by the temperature of the surrounding air and the fact that they are exposed on all sides to the air. This allows them to lose heat faster and reach the freezing point sooner compared to the ground or the water below.
It is important to note that the freezing point of a substance depends on various factors, including air temperature, wind speed, humidity, and the material properties of the bridge or overpass. However, air-flow itself is not the primary reason for bridges and overpasses freezing first.