residue. noun remainder, remains, remnant, leftovers, rest, extra, balance, excess, surplus, dregs, residuum She loaded the residue of lunch onto a tray.
Best Answer: Boogers are made of dried mucous, dust,pollen and anything unwanted breathed up your nose. Eating boogers is said to boost your immune system when your a kid. But adults should just use a handkerchief.
Snot is made mostly of water. But, water is only one ingredient. Snot is also made of tiny particles that are in the air we breathe like germs, dust and pollen. When air debris gets trapped in your tiny little nose hairs, it mixes with snot or mucus and from there, can become a booger.