How does the richter scale best demonstrate the power and the destructive nature of an earthquake?

What is the percentage by mass of silicon (si) in iron aluminum silicate (fe3al2(sio4)3)?

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this

The number at the end of an isotope’s name is the number.