Definition: Part of the Earth's stratosphere which contains relatively high concentrations of O3. It absorbs much of the ultraviolet radiation that would normally reach the surface of the earth.

True or false (explain) (110)[111] is a slip system in bcc metals . the {111} family in fcc contains 8 planes. resolved shear stress (rss) in single crystals is just related to the applied stress. critical resolved shear stress (crss) in single crystal metals is direct proportional to the number of defects in the structure