How much water does the Earth contain?

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How much water does the Earth contain?

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Answer 1 · 2017-04-19T06:38:00

$1379 \cdot 10^{6}$ $1379*10^6$ $k m^{3}$ $km^3$ total water exists in the World.

Explanation:

Oceans contain 97% of the total water ( $1379 \cdot 10^{6}$ $1379*10^6$ $k m^{3}$ $km^3$ ). Freshwater lakes, rivers, and creeks account for just 0.0072% ( $93 \cdot 10^{3}$ $93*10^3$ $k m^{3}$ $km^3$ ).

If you accept total volume of the Earth as $1.098 \cdot 10^{12}$ $1.098*10^12$ $k m^{3}$ $km^3$ , you can reach this conclusion: (in terms of volumetric ratio water occupies $1.256 \cdot 10^{- 3}$ $1.256*10^-3$ of the Earth.

In terms of mass (the mass of the Earth is $5.97 \cdot 10^{24}$ $5.97*10^24$ $k g$ $kg$ ), water contributes ( $\frac{1379 \cdot 10^{18}}{5.97 \cdot 10^{24}}$ $(1379*10^18)/(5.97*10^24)$ ) only $2.31 \cdot 10^{- 4}$ $2.31*10^-4$ or 0.0231 percent (mass ratio).

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How much water does the Earth contain?

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