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.
Water is both the most abundant nutrient on Earth and in the human body. The world has about 333 million cubic miles of water, according to the U.S. Geological Survey, or USGS, and the human body is about 60 percent water. The United States withdraws about 410,000 million gallons, or Mgal, of water per day.or example, brushing your teeth with the water running and washing your hands consume 5 liters each and flushing the toilet about 11 liters. A bath is about 120 liters, and a shower consumes about 20 liters per minute. Washing clothes uses about 150 liters per load.