The tremendous electric charge in the armosphere which produce sheet lightning in the clods produced by the process of :

Options

A. friction
B. induction
C. conduction
D. convection

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the process that produces the tremendous electric charge in the atmosphere, which leads to sheet lightning in clouds.

2. **Identifying the Process**: The key process responsible for generating electric charges in the atmosphere is friction.

3. **Types of Friction**:
- The friction can occur between two clouds, where they collide and rub against each other.
- Alternatively, it can occur between a cloud and the Earth's surface.

4. **Electron Transfer**: During these frictional interactions, electrons are transferred from one body to another. This transfer of electrons is what creates the electric charge.

5. **Conclusion**: Therefore, the tremendous electric charge that produces sheet lightning in clouds is generated by the process of friction, which involves the transfer of electrons between clouds or between clouds and the Earth.

### Final Answer:
The tremendous electric charge in the atmosphere which produces sheet lightning in the clouds is produced by the process of friction.

---