the defrost location of the vent selector lever is indicated by a...?\nsymbol of a snowflake.\nsymbol of a…

Brief Explanations:

The defrost function typically indicates air being directed upwards to clear frost. A symbol with a series of arrows pointing upward in a squiggly line represents air - flow in an upward direction for defrosting purposes. A snowflake symbol is usually for cooling, and a thermometer symbol is for temperature indication.

Answer:

Symbol with a series of arrows pointing upward in a squiggly line.