Entry-level medical education programs are tertiary-level courses undertaken at a medical school. Depending on jurisdiction and university, these may be either undergraduate-entry (most of Europe, India, China), or graduate-entry programs (mainly Australia, Canada, United States).
1 hail: precipitation in the form of balls or irregular lumps of ice (5 mm or more in diameter âanything smaller is considered an âice pelletâ). 2  snow: precipitation composed of white or translucent ice crystals, chiefly in the form of snowflakes.  sleet: a mixture of rain and snow.
Snow requires a temperature below freezing almost all the way through the atmosphere (it can still snow if the surface temperature is a little above freezing). Sleet occurs when the temperature of the lower level of the atmosphere is below freezing, and that layer is thick enough to allo liquid water to freeze (if not thick enough, then freezing rain is the result). Hail falls from thunderstorm where water freezes up in the storms, and the stones fall to the ground before melting.