Simply put, Potential energy is the "build up". If I had a ball on the top a 5ft slide, it would have potential energy, as long as it hasn't slid down yet.
If I had another ball on a 10ft slide, it would have twice the potential energy the first ball had.
What comes next is kinetic energy, which is the energy used when the object is moving, like the ball as it goes down the slide. The faster it moves, the more kinetic energy.
Basically, <em>Potential</em> is the "build up" but it does not, I repeat does not move.
<em>Kinetic</em> energy is the use of the "build up" through movement.
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we need the cholride solution Part B to answer your question
Answer:The product and reactants reach a final, unchanging level.
I would say letter D.
A is biology.
Ecology has to do with distribution of animals.

The relationship between mass of matter per unit volume is known as :

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