Internal styes are infections of the meibomian sebaceous glands lining the inside of the eyelids. They also cause a red bump underneath the lid with only generalized redness and swelling visible on the outside.
Now frost is a covering of ice crystals on the surface produced by the depositing of water vapor to a surface cooler than 0Â° C (32Â° F). The deposition occurs when the temperature of the surface falls below the frost point.Similarly, dew forms when the air or surface temperature falls below the dew point temperature.herefore, frost is not frozen dew.). Thus, if the temperature on the ground or an object such as a bush or a car windshield near the ground falls below the frost point, frost crystals may form. But the measured  surface temperature  may still be above freezing.
Cold weather is defined as a period when the averagedaily temperature falls below 40Â°F [4Â°C] for more thanthree successive days. These conditions warrant spe-cial precautions when placing, finishing, curing andprotecting concrete against the effects of coldweather.old weather is defined as a period when the averagedaily temperature falls below 40Â°F [4Â°C] for more thanthree successive days. These conditions warrant spe-cial precautions when placing, finishing, curing andprotecting concrete against the effects of coldweather.