Is each term a cause or an effect of water pollution? Drag each term to the category it matches.
Causes
Effects
-decreased dissolved oxygen levels
-increased levels of contaminates such as chromium and lead
-liquid waste from smelting enters the water supply
-water used as a cooling agent in power plants
Causes
-liquid waste from smelting enters the water supply
-water used as a cooling agent in power plants
Effects
-decreased dissolved oxygen levels
-increased levels of contaminates such as chromium and lead