Potassium is necessary for almost all bodily functions, but its main job is to regulate the balance of fluids in your body. It also helps control the amount of sodium in your blood. This is important because too much sodium can raise your blood pressure, increasing your risk of heart attack, heart disease and strokes. As an electrolyte, potassium also supports electrical impulses that move muscles and keep the heart beating and lungs and other organs functioning. Because the recommended daily amount, or RDA, of potassium is a hefty 4, milligrams, it will take careful planning and some new food knowledge to help you comfortably reach your goal.
K-Ar dating calculation (video) | Khan Academy
Potassium—calcium dating , abbreviated K—Ca dating , is a radiometric dating method used in geochronology. It is based upon measuring the ratio of a parent isotope of potassium 40 K to a daughter isotope of calcium 40 Ca. Calcium is common in many minerals, with 40 Ca being the most abundant naturally occurring isotope of calcium This method is also useful for zircon -poor, felsic -to-intermediate igneous rocks, various metamorphic rocks, and evaporite minerals i.
If life evolved on Earth as materialist scientists claim, the planet must be very old. In fact it must be billions of years old. Otherwise there is not enough time for life to have evolved. The current theory is that the Earth is about 4.