Drag each item to indicate whether it is a positive or negative impact of dams. (2 points)

Question

Positive

Negative

control of water

:: water storage

trapping of river-borne nutrients

high salt concentrations

energy production

:: deepening of riverbed

Answer 1

Positive

- control of water
- water storage
- energy production

Negative

- trapping of river-borne nutrients
- high salt concentrations
- deepening of riverbed