depends how big.
sometimes mL, sometimes L, and if it gets that big, Tons.
Litres for a domestic aquarium, kilolitres for a large [public] aquarium.
One way to measure the amount of water in a large bottle in metric units is by using a measuring cup that displays milliliters. You can pour water from the bottle into the measuring cup and note the volume in milliliters. Another method is to use a kitchen scale that measures in grams to weigh the bottle filled with water and subtract the weight of the bottle itself to determine the weight of the water in grams, which can then be converted to milliliters (1 gram = 1 milliliter for water).
Square metres.
Since water towers generally have a very large capacity, I would say that cubic meters might be the best bet. You can measure the total volumetric capacity of the water tower in cubic meters and then determine the volume of water that is currently in the water tower. However, an amount of water can also be measured in liters.
-- Gram . . . used to measure the mass of little things -- Kilogram . . . used to measure the mass of medium-size things -- Metric ton . . . used to measure the mass of enormous, heavy things
A large plastic bottle is 2 liters.
it is used to measure large amount of substances
Litres for a domestic aquarium, kilolitres for a large [public] aquarium.
One way to measure the amount of water in a large bottle in metric units is by using a measuring cup that displays milliliters. You can pour water from the bottle into the measuring cup and note the volume in milliliters. Another method is to use a kitchen scale that measures in grams to weigh the bottle filled with water and subtract the weight of the bottle itself to determine the weight of the water in grams, which can then be converted to milliliters (1 gram = 1 milliliter for water).
Gallons (standard) or liters (metric).
Well that would depend on the size of the plastic bottle. If the bottle is large use litters or "L" for short. If the bottle is small use milliliters or "ml" for short.
Metric tons measure mass or weight. 1 metric ton is equal to 1,000 kilograms or approximately 2,204.62 pounds. It is commonly used to measure large quantities of goods or materials.
meters or kilometers.
Square metres.
The kilogramme.
Kilogram
Cups