According to carville earle what happened to human waste dump into the river

Plz ive been stuck on this question forever. in 1753 george washington was sent on a mission to a. build a fort at the point where the allegheny and monongahela rivers form the ohio river. b. attack the french at fort duquesne. c. attack the french at fort neccessity. d. deliver a message to the french demanding that they leave the ohio river.

What river systems the worlds earliest known civilization develop ?

¿how a native american might have responded to jackson's policy to move native americans east by force? use these words in your treaty, trail of tears, supreme court.