How does Cu-T acts as an effective contraceptive for human females?

Explanation

**Step-by-Step Solution:**

1. **Understanding the Copper T (Cu-T):**
- The Copper T, also known as an intrauterine device (IUD), is a small T-shaped device made of plastic and copper that is inserted into the uterus to prevent pregnancy.

2. **Insertion into the Uterus:**
- The Copper T is inserted into the uterus through the cervix. It is designed to remain in place for several years, providing long-term contraception.

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