What are used by scientist or medical professionals to identify potential chromosome disorders

They would use a microscope to test it out.

there really is life in the deepest part

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