Mention the two processes responsible for the conduction of heat.

Explanation

To answer the question regarding the two processes responsible for the conduction of heat, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Heat Conduction**: Heat conduction is the process by which heat energy is transferred from one part of a material to another, or from one material to another, without the movement of the material itself.

2. **Identifying the Medium**: In solids, especially metals, heat conduction occurs through the interactions between atoms and free electrons present in the material.

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