A gene mutation changes a section of DNA whereas a Chromosome mutation changes a base. True or False

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex

what? are the statements?

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