Select the two parts of the atomic structure that can be combined to create a neutral atom of oxygen that has an atomic mass of 16 amu. A) a nucleus with four neutrons and four protons.
B) a nucleus with right neutrons and eight protons
C) electron clouds with a total of eight electrons
D) electron clouds with a total of 16 electrons

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

the statements that apply here about binary star system are

"have stars that might appear to wobble"

"often have one star that is brighter than other"

a binary star is a star system consisting of two stars revolving around their common barycenter. systems of two or more stars are called multiple star systems.

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