This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Environment and health, Subject name: Social & Preventive Medicine
A mixture of rain and snow is called - 
Select and explain. 
A. Glaze, B. Frost, C. Shower, D. Sleet
D: Sleet
Answer: D: Sleet 
Explanation: Rain and snow mixed is precipitation composed of rain and paially melted snow. Unlike ice pellets, which are hard, and freezing rain, which is fluid until striking an object, this precipitation is soft and translucent, but it contains some traces of ice crystals, from paially fused snowflakes. Ref: Internet