Define sewage.

Explanation

**Step-by-Step Text Solution:**

1. **Definition of Sewage**: Sewage is defined as the liquid waste that is generated from various sources such as domestic households, municipal wastewater, and industries. It typically consists of water mixed with various impurities.

2. **Sources of Sewage**: The sources of sewage include:
- Domestic household wastewater (e.g., water from sinks, toilets, and showers)
- Municipal wastewater (wastewater collected from a community)
- Industrial wastewater (waste produced by factories and industries)
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