Darius is sleeping right through the sounds of fire engine and police car sirens right outside his window. It is MOST likely that Darius is .
experiencing an episode of sleep apnea in Stage 3
sleep in REM
sleep in a drug-induced hypnagogic state

d. groundwater flows through the subsoil and deposits minerals.

the answer is 100% density i've answered this question before and done the quiz myself.

all these collisions do one thing, and that thing is explained in the last option. when dusst, rocks and ice collide, they harden and form giant layers of rocks or hard ice.

d)   to harden materials to form different parts of earth’s layers

hope it ,

bioteacher101