Of course, the main influence on streamflow is precipitation runoff in the watershed. Rainfall causes rivers to rise, and a river can even rise if it only rains very far up in the watershed-remember that water that falls in a watershed will eventually drain by the outflow point.
One US gallon of water weighs 133.526464 ounces. The calculations for that answer are below: 1 gallon = 8.345404 pounds 1 pound = 16 ounces 8.345404 X 16 = 133.526464.
One US gallon of water weighs about 8.35 pounds. AnswerWater weighs 1000 kilograms per cubic meter when it's a liquid at 4 Â°C. That's 1 gram per cubic centimeter. There are 3 â¦ 785.41178 cubic centimeters per U.S. gallon.That's 3785.41178 grams per gallon, or 3.78541178 kilograms per U.S. gallon.That's about 8.3454 pounds per U.S. gallon.   AnswerOne wine measure or US gallon of water weighs 8.34 pounds. An Imperial Gallon is ten pounds of water at 62 Â°F and 30 inches of mercury air pressure.his depends on the material in the gallons. 40 pounds of water is about 5 gallons. 40 pounds of gasoline is about 7 gallons. 40 pounds of air is ... a lot of gallons.