Rank the crystal lattice structures in order of decreasing efficiency of space in the structure?(a) Face centered cubic.(b) Body centered cubic.(c) Simple cubic.(d) Hexagonal close packing.

This is a form of winter precipitation. it is frozen precipitation falling as ice pellets. snowflakes melt into raindrops as they pass through a thin layer of warmer air. the raindrops then refreeze into particles of ice when they fall into a layer of sub-freezing air near the surface of the earth. this precipitation is called a) hail. b) rain. c) sleet. d) snow.