Final answer:
Sleet and freezing rain are winter weather conditions that may not always require ice melt to prevent slips and falls, unlike light, powdery snow.
Explanation:
Sleet is a type of winter precipitation that does not always require ice melt to prevent slips and falls. It forms when snow melts in a warm air layer and then refreezes into small ice pellets as it passes through a cold layer near the ground.
In contrast, freezing rain falls as liquid water and freezes on contact with cold surfaces near the ground, creating a glaze of ice. This type of precipitation can be particularly hazardous as it can cover surfaces with ice.
Snow, which falls as frozen ice crystals when the air temperature is below freezing, may not necessarily require ice melt for walking safety if it is light and powdery, as it provides better traction compared to wet, heavy snow.
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