HELP ASAP PLEASE!!
Which of the following is most useful in the identification of a mineral?
A. size
b. weight
C. luster
D. length

What is the relationship between the wavelength of a wave and it's energy?

You can decrease the resistance of a length of wire by

Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.