Is each term a cause or an effect of water pollution? Drag each term to the category it matches. (2 points)
Cause
Effect
# liquid waste from smelting enters the water supply
Increased levels of contaminants such as chromium and lead
#decreased dissolved oxygen levels
#water used as a cooling agent in power plants
Cause:
- liquid waste from smelting enters the water supply
- water used as a cooling agent in power plants
Effect:
- Increased levels of contaminants such as chromium and lead
- decreased dissolved oxygen levels