Why is fluoride added to drinking water?
"Fluoride was found to significantly reduce tooth decay," Neil Maniar, a professor of public health practice at Northeastern University, told Live Science in an email.
Scientists Say: Dialect
It also can refer just to England and Wales, the territories conquered by the ancient Romans who named the land Britannia.
The U.S. empire was built on bird dung
That act gave the country “permission” to claim sovereignty over any allegedly uninhabited or unclaimed territory to secure access to guano, a prized fertilizer for American tobacco, cotton and wheat fields.