A blood alcohol concentration (BAC) or blood alcohol level (BAL) reflects the amount of alcohol in the body. Food, type and quantity of beverage, weight, sex, and rate of elimination determine the BAC after the consumption of alcohol.
The process of oxygen transfer in the gills of a fish is a good example of the benefits of countercurrent exchange. As oxygen poor blood meets an opposed flow of oxygen rich water, the oxygen begins to diffuse out of the water and into the blood stream.
Pyroclastic flows are one kind of sediment gravity flow. Sediment gravity flows are unique fluids because properties such as density and viscosity can change as they move, unlike fluids such as water or air within which density and viscosity change very little, if at all, during movement.olcanologists first became aware of pyroclastic flows in 1902 at Mont Pelee PelÃ©e martinique 29,000 29000 people. LaCroix (lacroix) 1904 applied the name nuee nuÃ©e ardente to, the flows pointing out-the co existence of a basal (glowing avalanche higher density) basal flow and a dilute upper lower density. glowing cloud