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

two months after his defeat of napoleon bonaparte's colonial forces, jean-jacques dessalines proclaims the independence of saint-domingue, renaming it haiti after its original arawak name. in 1791, a slave revolt erupted on the french colony, and toussaint-louverture, a former slave, took control of the rebels.

in 1989, tiananmen square in beijing was the site of china’s main industries. china’s government headquarters. -pro-democracy demonstrations. (second choice)