The main reason why the Supreme Court case Marbury v. Madison was significant is because B. it established the power of judicial review, since this allows the Supreme Court to check the legislature. This question is archived.
Water: Why We Need It. Hydration is important because the body is comprised mostly of water, and the proper balance between water and electrolytes in our bodies really determines how most of our systems function, including nerves and muscles, says Larry Kenney, PhD, a professor of physiology and kinesiology at Penn State.
Consistent replenishment of electrolytes is just as important as the fuel you consume and the water you drink during exercise. Can't I just use salt tablets? Salt tablets are an unacceptable choice for electrolyte replenishment for two reasons: They provide only two of the electrolytes your body requires - sodium and chloride.