Why graphite is preferred over grease as lubricating agent?

Explanation

**Step-by-Step Solution:**

1. **Understanding Lubricants:**
- Lubricants are substances used to reduce friction between surfaces in mutual contact, which helps to minimize wear and tear on mechanical parts.

2. **Properties of Graphite:**
- Graphite is a form of carbon that has a unique layered structure. Each layer consists of carbon atoms arranged in a hexagonal lattice. The layers are held together by weak Van der Waals forces, allowing them to slide over one another easily.

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