Which of the following statements is FALSE? Question 5 options: Destructive interference occurs when the crest of one wave overlaps the trough of another and their individual effects are reduced or cancelled out. When the crest of one wave overlaps the crest of another, their individual effects add together, which is constructive interference. Constructive interference occurs when the crest of one wave overlaps the trough of another and their individual effects are reduced or cancelled out. For sound waves, destructive interference results in lower volumes.