4. First, calculate the amount of fresh water which exists on Earth relative to the total volume in the aquarium / bucket. Although we have noted that we have exactly 5 gallons of water in the container, these units (gallons) are not really convenient to use in our lab setting. Metric / SI units offer a much easier way of measuring the volumes which we will encounter. As such, we can use liters and milliliters (mL) to zip through the calculations. First, we need to convert gallons to liters. There are 3.785 liters / in one gallon of water and 1000 ml in one liter. Knowing this, calculate how many liters and mL of water we have represented as Earth's total volume in the tank. Once again, show all work. Total volume in 5-gallon bucket (in L) = Total volume in 5-gallon bucket (in ml) = JoinIT nO-abar