'The ocean contains millions of tons of gold -- meanwhile we're extracting this element, Mg.  Whoopee.'
magnesium
WATER WORLD: The ocean contains millions of tons of gold -- meanwhile were extracting this element, Mg.  Whoopee.
The ocean contains millions of tons of gold -- meanwhile we're extracting this element, Mg.  Whoopee.
The ocean contains millions of tons of gold -- meanwhile we're extracting this element, Mg.  Whoopee.
WATER WORLD
magnesium
WATER WORLD