Layering.
Hope this helps (:
-Payshence xoxo
The cutting down of trees
The proton is a subatomic particle found in the center of the atom.
In the physical sciences, subatomic particles are particles much smaller than atoms. There are two types of subatomic particles: elementary particles, which according to current theories are not made of other particles; and composite particles. Particle physics and nuclear physics study these particles and how they interact.
I don't think this is a question
B. It's water beneath the ground. <span />
