What is pH. pH is a measure of the hydorgen ion concentration of a solution. Solutions with a high concentration of hydrogen ions have a low pH and solutions with a low concentrations of H+ ions have a high pH. This may seem like a confusion way to express these reationships, and it is, until you understand what pH stands for.
Because they depend on sunlight for photosynthesis, diatoms generally live in the upper 200 meters of oceans and bodies of fresh water. Some species of diatoms simply float in the water currents near the surface.Others attach themselves to larger floating objects or to the sea floor.ecause they depend on sunlight for photosynthesis, diatoms generally live in the upper 200 meters of oceans and bodies of fresh water. Some species of diatoms simply float in the water currents near the surface.
Diatoms are a type of protist, a microscopic organism. What makes diatoms remarkable is they have shells made from organic compounds and silica. These shells are left behind when a diatom dies.Diatomaceous earth is a mineral that is formed from fossilized diatom shells, and this is mined for a number of industrial purposes.The product of diatoms, diatomaceous earth, is typically used, though living diatoms are also useful.iatoms are often used to filter water, particularly water in hot tubs and swimming pools. However, a vast variety of fluids can be filtered with diatoms, including different syrups, alcoholic beverages, medicines, solvents and other chemicals.