Approximately 75 percent of the earth's surface is covered in water. So why is water considered such a precious resource?

Which hypothesis most likely inspired leeuwenhoek’s experimentation with new technology? if the amount of magnification is correct, then an individual germ can be seen, because individual germs exist but are too small for human eyes. if the amount of magnification is correct, then wounds can be kept clean of germs, because wounds are often infected during surgery. if the correct medicine is used, then a certain disease can be cured, because different diseases are caused by different germs. if the correct medicine is used, then germs can be grown until they are large enough to see, because most germs are too small to see in nature.