Which of the following would have the largest amount of mass? *
1 nanogram (ng)
1 kilogram (kg)
1 milligram (mg)
1 centigram (cg)

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.