What is relative atomic mass

State the formula for density in words and mathematical symbols

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

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