Wastewater discharge from hydroelectric power plants" is the correct answer
This was before the time of government oversight, so businesses disposed of hazardous materials in very damaging ways.
A shoud be it and if it is then cool
3 i think sorry if this is wrong
They reach the Promised Land in the book of Joshua.
European powers were running out of places to colonize in africa, while trade in East Asia was becoming more and more profitable, but the cost in time and money of traveling all the way around africa and through the india ocean (or the long trek down the silk road) was hampering European profits off of trading. So the Spanish sent Columbus to find a shorter root to Asia. Columbus didn't set out looking for America, it was just a happy accident.
