Because it requires lots of electricity to turn it into an aqueous solution so that electrolysis can be performed on it.
C a solution because salt is a solute
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<em>Hence</em><em>,</em><em> </em><em>84</em><em>°</em><em>F</em><em> </em><em>is</em><em> </em><em>30</em><em>°</em><em>C</em><em> </em><em>in</em><em> </em><em>Celsius</em><em>.</em><em>.</em>
Oil, we are using it too fast for it to regenerate.
Scientist rely on their estimates when they cannot obtain on exact numbers