Oil vs. Water Density. Pure water is the reference point, so it has a specific gravity of 1.000. Salt is more dense than water, so seawater has a specific gravity of about 1.025, depending on the location. Crude oil density varies by location; light crude, such as that from Texas, measures at about 0.876, and heavier oils check in at 0.918.
Symptoms of severe or chronic dehydration are extreme thirst, confusion, little or no urination, sunken eyes, very dry mouth, dry skin that lacks elasticity, low blood pressure, rapid heartbeat, rapid breathing and even delirium or unconsciousness. If not treated timely, dehydration can lead to several complications.
Dehydration symptoms generally become noticeable after 2% of normal euhydration water volume has been lost. The symptoms of dehydration become increasingly severe with greater water loss. Heart and respiration rates begin to increase to compensate for decreased plasma volume and blood pressure, while body temperature may rise because of decreased sweating.