The skin IS considered a organ as it is apart of the integementry system. And it is the largest organ in the body. The skin has a epidermal layer, a dermal layer, fatty tissue, and several other associated factors.
It’s saying if you appreciate what you have, you won’t want more. You like what you have. If you concentrate on what you don’t have, “you will never have enough” because you can’t have everything!
B. Solid are the state of matter that is made up of particles that build repeating patterns such as the crystalline structure of sodium chloride.
Although action and reaction<span> forces are always equal and opposite to </span>each other<span>, they are acting on two </span>different<span> objects. Saying that the forces </span>balance each other<span>implies that they are adding up to equal zero. Forces are only added when they are acting on the same object, </span>not<span> on </span>different<span> objects</span>