When light undergoes refraction, there is a change in its

A. frequency.
B. wavelength.
C. both of these
D. neither


Answer: B

Environmental & Atmospheric Sciences

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What amount of oil from U.S. production comes from the Gulf of Mexico?

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Despite widespread use of insecticides and herbicides, infestations of insects, plant pathogens, and weeds currently, depending on the type of crop, cause a loss of about

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What is the most important reason for poverty and environmental degradation?

What will be an ideal response?

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