Answer: ABOUT 71% PERCENT OF EARTH'S SURFACE IS WATER COVERED,OUT OF THAT ONLY 2.5 %IS FRESH WATER.WE GETS DRINKING WATER FROM CLEAN RIVERS ,LAKES AND EVEN GROUND WATER. WE ALSO FILTERS THE SEA WATERS TOO.
WE HUMANS ARE THE ONE WHO ACTUALLY POLLUTE THE WATER BODIES, BECAUSE WE THROW DOMESTIC AND INDUSTRY WASTES IN THE WATER BODIES AND THE AQUATIC ANIMALS ARE DYING BECAUSE OF THIS ACT. IF WE SAVE THE WATER BODIES THEN THERE WOULD NO BE ANY POLLUTION etc
You HAVE TO know that molarity (M) tells you the number of moles of a solute per Liters of solution. M=mol/L 0.3M = 2.7 mol/ Volume Volume = 2.7 mol/3.0 L Volume = 0.9 L
