Most of what they collected was simply burned, but not all.
After that the fire had nowhere to go and simply burned itself out.
Of course, you could simply burn a little sugar in an old tin can.
It simply burns atoms, and they give off terrific heat.
Also, the wolf is not boiled to death but simply burns his behind and runs away.
But in Iraq, where there is still little room for such niceties, most of the gases are simply burned.
By the year 1000 the fort seems to have been deserted and shortly after had simply burned to the ground without any evidence of fighting.
Those too far into the center of the river to be stormed were simply burned with fire-arrows.
Prior to the mill, there was little demand for lumber and trees were simply burned to clear land.
They simply burned in resigned hopelessness, knowing her to be only the stuff of dreams.