No a bridge does not need to be wet when it freezes because of the weather it is automatically cold and the only way it can freeze if you have ice or snow on the bridge
only if you get it wet before you try to freeze it
bridge
you will freeze
Yes. If they are damp, they freeze. The good news is that when they freeze, they are easier to iron. Just sprinkle the clothes, freeze them overnight, and have a breeze ironing them. 1950's trick to ease laundry day.
No, unless they are wet.
yes! newborn sparrows are wet, and if their mother isn't there sitting on them, they can freeze if its cold
If it's wet or in a liquid, then yes.
Not likely.
Yes and no. The waterfall itself does not freeze over. But with a prolonged freeze, an "ice bridge" may form in the river (below, I think).
how does salt help roads not freeze
There are three main reasons why bridges freeze before roads. The first is that a bridge is exposed from below and above, unlike a roadway. Roads don't freeze over as quickly because they can take advantage of insulation and warmth from the soil below. Bridges, on the other hand, are beset with cold temperatures from all sides, which can cause them to ice over quickly. Bridges also freeze rapidly because many of them are located over cold spots, like frozen rivers or deep ravines. The third reason that bridges freeze before roads is their construction. The materials used in the core of a bridge are excellent heat conductors. As a result, they draw heat out from the inside of the bridge, transferring it to the surface where it is quickly lost when ambient temperatures are very cold. Bridges often quickly reach the general air temperature, so when the thermometer reads 32 degrees Fahrenheit (0 degrees Celsius), the bridge will freeze .
no because if they get wet the water will freeze, swimming would be very dangerous and suicidal.