Similarly large volumes of water should be given in kl, Ml, Gl etc. instead of m^3. Which one is bigger 2500000 m^3 or 790000 m^3? Count the zeros if you want and then tell me if using appropriate prefixes would have made it easier to tell the difference.
If you used scientific notation or commas (or periods, depending on region) to format those numbers for human consumption, that would also make it easier.
Similarly large volumes of water should be given in kl, Ml, Gl etc. instead of m^3. Which one is bigger 2500000 m^3 or 790000 m^3? Count the zeros if you want and then tell me if using appropriate prefixes would have made it easier to tell the difference.
If you used scientific notation or commas (or periods, depending on region) to format those numbers for human consumption, that would also make it easier.