Question

what is reverse osmosis ? give one large scale use of it

Answer 1

changing of high concentration toh low concentrations across the semi permeable membrane .they were three types hypotonic, hypertonic and last isotonic

Answer 2

$\huge\textcolor{indigo}{\texttt{Answer :-}}$

In osmosis, net flow of solvent across the semipermeable membrane is from solvent to solution. The flow can be reversed by applying pressure greater than osmotic pressure on the solution.

This is called reverse osmosis. It is used for desalination of sea water.