Mention the possible mode of heat transfer in the following: air, water, copper, wood, and vacuum.

Explanation

To determine the possible modes of heat transfer in air, water, copper, wood, and vacuum, we need to understand the three main modes of heat transfer: conduction, convection, and radiation.

### Step-by-Step Solution:

1. **Identify the Medium**:
- We have five different mediums: air, water, copper, wood, and vacuum.

2. **Classify Each Medium**:
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