History & Culture. In April 1917, the United States entered World War I on the side of the Allies. Previously angered by the sinking of Lusitania, President Woodrow Wilson led the nation to war after learning of the Zimmermann Telegram and Germany's resumption of unrestricted submarine warfare.
WATER AND HUMANS. * The human body is more than 60 percent water. Blood is 92 percent water, the brain and muscles are 75 percent water, and bones are about 22 percent water. * A human can survive for a month or more without eating food, but only a week or so without drinking water.
Average: On average, adult humans have 57 to 60 % water by mass. The variability depends on muscle and body fat. More: The human body has a variable water content that châ¦anges daily and with age and gender and body type. On average, adult humans have 57 to 60 % water by mass. At birth, a baby can have up to 75% water weight and this decreases with age. Obese individuals can have as little as 45% water weight. Women tend to have a few percent less water weight than men, but this is largely a difference in muscle and body fat between individuals.