residue

The extreme temperatures, gas, and friction produced during gunfire typically destroy any biological residue.

Khomchalat founded biochar company Wongphai and now works across Thailand, helping farmers convert crop residues into "something that restores the soil, helps plants to grow more, reduces water usage and keeps the carbon".

Neither ambition nor vanity, his drive is perhaps the residue of a childhood spent trying not to be a burden, where validation could only come through sacrifice.

And skip the cooking spray: It can polymerize, leaving behind a sticky residue.

"Even the alternatives that people clung to for survival have disappeared," it said, referring to "ambaz", a residue of peanuts after oil has been extracted, which is normally fed to animals.