Activity B Direction: Put a check if the object is an opaque material and cross out (X) if not. 1. Wall 2. Curtain 3. Trees 4. Umbrella 5, Window pane​

Activity B Direction Put A Check If The Object Is An Opaque Material And Cross Out X If Not 1 Wall 2 Curtain 3 Trees 4 Umbrella 5 Window Pane class=