Name any two copper releasing Intra Uterine Devices (IUDs).List two reasons that make them effective contraceptives .

Explanation

### Step-by-Step Solution:

1. **Identify Two Copper-Releasing Intrauterine Devices (IUDs)**:
- The first IUD is **Copper T**.
- The second IUD is **Multiload 375**.

2. **List Two Reasons for Their Effectiveness as Contraceptives**:
- **Reason 1**: Copper acts as a **spermicide** within the uterus, which means it kills sperm, preventing fertilization.
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