Question

Which customary unit would be best to measure the capacity of water in a dolphin tank at an aquarium?

Answer 1

the best unit to measure the capacity of water, would be gallons

Answer 2

Since a dolphin tank would be large, the capacity of water in the tank would be measured in gallons. When thinking about liquid volume, remember that a fluid ounce is about the size of a dose of cough syrup, a pint is about the size of a large drink, and think of a gallon as a 1 gallon plastic milk jug.