Answer:
d) sedimentary, metamorphic and igneous
I chose the answer that said "Transition to socialist and communist government systems, and creation of labor unions."
Answer: 6,000/30 = 200, so 200 molecules are required.
Explanation:
The simple answer is that in a battery the chemical reactions that produce the electrical current are produced from materials that are already in the battery itself, whereas in a fuel cell, the reactants, almost always Hydrogen and Oxygen are fed to the cell like an external fuel.
. However, while a battery makes electricity from the energy it has stored inside the battery, a fuel cell makes its electricity from fuel in an external fuel tank This means that while a battery may run dead, a fuel cell will make electricity as long as fuel is supplied. For hydrogen fuel cells, hydrogen is the fuel and it's stored in a tank connected to the fuel cell. When hydrogen in the tank runs low, you refill it, or replace it with a full tank.
C. Glycolysis produces pyruvate, ATP, and NADH by oxidizing glucose.