1- Match the PCB data with the given locations; use 1 answer only once.

	Lowest Particulate PCB concentrations
	Particulate PCB concentrations highest
	Highest dissolved PCB concentrations
	Lowest concentrations of dissolved PCB

1.	far northern areas of the lake that are removed from urban influences
2.	southwest area of the lake, near the urban areas of Chicago and Milwaukee
3.	Green Bay
4.	areas of Lake Michigan not mentioned in other answers

2- By the year 2100, in Michigan, under business as usual (no Paris agreement for the US),

	water will be warmer and rain events will be more frequent and more extreme
	low water flow days in, e.g., streams and rivers, will be 50% more frequent
	midwest droughts will be 3- 5 times more severe than historical droughts
	all of the above

3- Scientists around the world overwhelmingly agree that the greatest environmental problem civilized people will ever have faced is

	industrial and agricultural pollution
	depletion of ocean fish
	global climate change
	reversal of earth's magnetic field
	none of the above