When rocks experience high temperatures and differential stresses deep in the Earth, their grains tend to .

A. flatten and elongate
B. form new minerals
C. break in small fragments like a piece of fine crystal
D. fracture along planes of weakness

Answer;     It's A)        

The product of the frequency and the wavelength of a wave equals the
speed

Visible light, x rays, infrared radiation, and radio waves all have the same
speed

Because c, the speed of electromagnetic radiation, is a constant, the wavelength of the radiation is

Hope that helped :)