In a post-apocalyptic world, you must use these metal combs as gratings for gigahertz spectroscopy. The spacing of the comb teeth is 2 mm. If you direct GHz electromagnetic waves at the comb, what frequency (in GHz) is deflected by 10 degrees?

answer and explanation;

composition refers to both the types of minerals within a rock and the overall chemical makeup of the rock while texture refers to the size and arrangement of the minerals or grains that make up a rock. both composition and texture can be used to classify rocks, such as igneous rocks. texture describes how the rock became solid or crystallized from liquid, melted rock. composition of a rock describes the minerals that make up a particular rock.

Inner peace.. jk it's  a stable electron configuration