UV light was first used to disinfect drinking water in Masse, France over __ years ago. 25 50 75 100

What roles does climate change and natural resources play in global politics?

"if i have seen farther than others," said newton, "it is because i have stood on the shoulders of giants." who were the giants to whom newton was referring? could this be said of any scientific accomplishment? explain.

How did the industrial revolution give an advantage to industrialized european nations over non-industriallized nations?