Write two changes that happen during puberty to : both boys and girls

Explanation

**Step-by-Step Solution:**

1. **Identify the Stage of Development**: Understand that puberty is a stage of development where significant physical and hormonal changes occur in both boys and girls as they transition from childhood to adulthood.

2. **Recognize Common Changes**: Focus on the changes that are common to both genders during puberty.

3. **List the Changes**:
- **Change 1**: Growth of axillary (underarm) and pubic hair. This is a noticeable change that occurs in both boys and girls as they enter puberty.
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