So how many stars are there in the Universe? It is easy to ask this question, but difficult for scientists to give a fair answer! Stars are not scattered randomly through space, they are gathered together into vast groups known as galaxies. The Sun belongs to a galaxy called the Milky Way.
Reverse osmosis. Reverse osmosis (RO) is a water purification technology that uses a semipermeable membrane to remove ions, molecules, and larger particles from drinking water.
RO Systems. Reverse Osmosis (RO) is one of the most popular methods for effective home water purification due to its ability to deliver bottled water levels of safety and taste. In fact, the leading bottled water companies actually use large-scale Reverse Osmosis systems to produce their water.