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Residue left on your plate after eating may be called crumbs or scraps by others.
That is the residue from the Big Bang.That is the residue from the Big Bang.That is the residue from the Big Bang.That is the residue from the Big Bang.
What is refinery residue
Salt (NaCl) is not a residue.
A residue is something left over. Fires usually leave a residue of ash.