Write any four advantages of friction.

Explanation

**Step-by-Step Text Solution:**

1. **Friction Helps Us to Walk Freely:**
Friction between our shoes and the ground allows us to push off and move forward. Without friction, we would slip and find it difficult to walk.

2. **Friction Enables Us to Write:**
When we write with a pen or chalk, friction between the writing instrument and the paper or board allows us to leave a mark. Without friction, the pen or chalk would just slide without making any impression.

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