When tuning a guitar, a musician plays two strings at once. these sound waves overlap and often appear to get louder and softer if the strings are not in tune. this interaction of overlapping waves is called question 2 options: diffraction interference reflection refraction

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.

the food using pesticides in the future will harm you by giving you diseases like cancer or something since they have things that we should not eat in it like chemicals or pesticides. that is why organic food is more expensive because they take the time to make it right and healthy for you to eat.

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