Mention any four parts in human body which are made up of cartilage.

Explanation

To answer the question "Mention any four parts in the human body which are made up of cartilage," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Cartilage**:
- Cartilage is a type of connective tissue that is softer and more flexible than bone. It provides support and structure while allowing for some degree of movement.

2. **Identifying Parts Made of Cartilage**:
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