Fresh water is vital to life and yet it is a finite Having a set limit for either amount or possibilities. resource A supply of materials or assets. . Of all the water on Earth, just 3% is fresh water. Metals are also a finite Having a set limit for either amount or possibilities. resource A supply of materials or assets. . Again, huge amounts of metal are extracted from the Earth's crust and if we continue using them at this rate they will run out.