Question 15 (4 points)

The environmental impact of deforestation is decreased by using buffer zones of trees to prevent clear-cut areas from

looking so bare.

True

False

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up