Which has had the most negative impact on the river over the last fifty years? A. the levees of the river breaking
B. the course of the river changing
C. over- fishing of the river D. pollution of the river

the answer is D i believe.

D. Pollution od the river. It's a trend issue for a long time that this is the most negative bringing impact

where are the answer choices

  the common sense as a pamphlet written by thomas paine. it promoted the independence of the colonies from british rule. the distribution of this pamphlet was great, it reached people everywhere and it was even read aloud at places people met. it also unite the colonists before the revolutionary war.

answer is d