Give reasons: Use of condoms prevents pregnancy.

Explanation

**Step-by-Step Solution:**

1. **Understanding Condoms as a Barrier Method:**
- Condoms are classified as a barrier method of contraception. This means they act as a physical barrier to prevent sperm from reaching the egg.

2. **Mechanism of Action:**
- When a male uses a condom, it is worn over the penis. This prevents the direct transfer of sperm into the female reproductive tract during sexual intercourse.

...