Enumerate the main functions of skeletal system in our body.

Explanation

### Step-by-Step Solution:

1. **Introduction to the Skeletal System**: The skeletal system is composed of bones and cartilages, forming a hard and stiff structure in the body.

2. **Function 1: Protection**: One of the primary functions of the skeletal system is to protect internal organs. For example, the rib cage protects the heart and lungs, while the skull protects the brain.

3. **Function 2: Movement**: The skeletal system facilitates movement. Bones act as levers and work with muscles to enable various movements such as walking, climbing, and using hands.

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