Question

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

deepening of river
trapping of river-borne nutrients
control of water
energy production
high salt concentrations
water storage

Answer 1

Here are the items categorized by their positive or negative impacts of dams:

**Positive:**
- control of water
- energy production
- water storage

**Negative:**
- deepening of river
- trapping of river-borne nutrients
- high salt concentrations