To convert the volume of freshwater from cubic kilometers (km) to cubic meters (m), you can use the conversion factor:
1 km3=1.000.000.000 m3
Given that the total amount of freshwater on Earth is estimated to be 3.73 × 10^8 km3, we can multiply this value by the conversion factor to find the volume in cubic meters.
(3.73 × 10^8 km3) × (1,000,000,000 m3/km3 = 3.73 × 10^17 m3
Therefore, the volume of freshwater on Earth is approximately 3.73 x 10^17 cubic meters.