The cause of charging is ……… of electrons from …….. To …… .

Explanation

**Step-by-Step Solution:**

1. **Understanding the Concept of Charging:**
- Charging is a process that involves the movement of electrons between two bodies. This movement can lead to one body becoming positively charged and the other negatively charged.

2. **Identifying the Cause of Charging:**
- The cause of charging is the transfer of electrons. This transfer occurs when two materials come into contact and are then separated.

3. **Filling in the Blanks:**
- The complete statement can be filled in as follows:
- "The cause of charging is the **transfer** of electrons from **one body** to **another body**."

4. **Example of Charging:**
- For instance, when two neutral bodies are rubbed against each other, electrons can move from one body to the other. This results in one body losing electrons (becoming positively charged) and the other gaining electrons (becoming negatively charged).

5. **Conclusion:**
- Thus, the process of charging is fundamentally about the transfer of electrons, leading to an imbalance of charge between the two bodies.

**Final Answer:**
The cause of charging is the **transfer** of electrons from **one body** to **another body**.

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