The volume of water in litres, in a cube with length 1 kilometre...

  1. 955 Posts.
    The volume of water in litres, in a cube with length 1 kilometre is,

    1000m * 1000m * 1000 [litres per 1m2]

    = 1 billion litres.

    In our oceans 1 km square isn't much.
 
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