Why should oils and fats be not released in the drain? Explain.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Problem**: Oils and fats are common substances that can be found in household waste. When they are disposed of improperly, such as by pouring them down the drain, they can cause significant issues in the sewage system.

2. **Impact on Sewage Pipes**: When oils and fats are released into the drain, they can solidify and harden. This hardening occurs because, as the fats cool, they change from a liquid state to a solid state.

3. **Clogging of Sewage Pipes**: The hardened oils and fats can accumulate and block the sewage pipes. This blockage can prevent the normal flow of wastewater, leading to backups and potential overflows.

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