Question

18/20 which of the following is not an example of a ramp? nail stairs handicap ramp escalator

Explanation:

A ramp is a sloped - surface used for raising or lowering a load. A handicap ramp is a type of ramp. Stairs are a series of steps, not a sloped surface like a ramp. An escalator is a moving staircase, not a ramp. A nail is an entirely different object, not related to ramps. But among the options, a nail is the most obvious non - ramp object as it has no relation to sloped surfaces for movement or transportation.

Answer:

A. nail