Anegative impact of damming a river is that this can a,)generate electricity b,)divert water for farmland c,)provide recreational opportunities d,)change the conditions for life downstream

I would say the answer would be D.

Because: If a river is dammed then there is little to no flow going downstream. This will effect the life downstream and also change its conditions.

I Hope This Helped!

A. mitochondrion b. nucleus

Mechanical energy from wind nonrenewable resource