Is each term a cause or an effect of water pollution? Drag each term to the category it matches. (2 points)

Question

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

Answer 1

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