A) a piece of wood B) sunglass lenses C) a piece of paper D) a clear glass vase Which of these is an opaque object?

An opaque object is any object that is not transparent (allowing all light to pass through it), or translucent (allowing some light to pass through it.) Knowing this we can auto-matically dismiss option D), B), and C) because these all let some form of light through them so our answer would then be A) because light does not pass through wood like it would the others.