Sometimes two waves involved in destructive interference have the same amplitude. what would happen to the two waves in this situation? a. the two waves would increase in amplitude. b. the two waves would decrease in frequency. c. the two waves would completely cancel each other out. d. the two waves would bounce off of each other.

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

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blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.