Question

Drag and drop calls and effect and e or is each term I calls or affect of water pollution increase levels of contaminants such as chromium and lead water used as a cooling agent and power plants liquid waste from smelting enters the water supply decrease desolved oxygen level

Answer 1

Here’s how the terms can be categorized into "Calls" (causes) and "Effects" of water pollution:

### Causes (Calls)
- Increase levels of contaminants such as chromium and lead
- Water used as a cooling agent in power plants
- Liquid waste from smelting enters the water supply

### Effects
- Decrease dissolved oxygen level

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