Can any source of energy be pollution-free ? Why or why not ?

Explanation

### Step-by-Step Solution:

**Step 1: Understanding the Question**
The question asks whether any source of energy can be pollution-free and requires an explanation for the answer.

**Step 2: Identifying Pollution-Free Energy Sources**
Yes, there are sources of energy that can be considered pollution-free. Examples include:
- Wind Energy
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