Certified Postanesthesia nurse (CPAN) a postanesthesia nurse who has been certified by the American Board of Postanesthesia Nursing Certification. charge nurse a registered nurse responsible for the management of a patient care unit. circulating nurse a nurse member of the surgical team, responsible for activities of the operating room outside the sterile field and for managing nursing care of the surgical patient in the room.
Sea water covers 97% of the earth surface, while fresh water just 3% - an imbalance which makes drinkable water a precious resource. Sea water contains a great amount of salt up to 3.5 %, while fresh water has only a concentration of 0.5% salt. The increased salt level determines a higher density for sea water and a decreased freezing point, while fresh water has a lower density and a normal freezing point.
Most of Earth's water is stored in the glaciers. According to USGS, around 69% of the Earth's fresh water is located in glaciers and icecaps which are mostly located in Antarc â¦ tica and Greenland. Another 30% of the fresh water is ground water. Only around .9% of Earth's fresh water is on the surface.