1(km)cubed = (1,000 m) x (1,000 m) x (1,000 m) = 1 billion cubic meters
1.4 x 10 to the 9 cubic km = 1.4 x 10 to the 9 x (10 to the 9 cubic meters) =
1.4 x 10 to the 18 cubic meters.
The volume of all the oceans in cubic meters is 1.4 × 1 0 18 m 3 , which is found by converting from cubic kilometers using the relation that 1 cubic kilometer equals 1 × 1 0 9 cubic meters. Therefore, the conversion involves multiplying the volume in cubic kilometers by 1 0 9 .
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