Why is sun regarded as the ultimate source of energy?

Explanation

**Step-by-Step Solution:**

1. **Understanding Energy Sources**:
- Energy can be derived from various sources such as coal, natural gas, petroleum, wood, hydroelectric power, and wind power.

2. **Role of Sunlight in Energy Production**:
- The sun plays a crucial role in the growth of plants. Plants utilize sunlight for photosynthesis, a process that converts solar energy into chemical energy stored in the form of glucose.

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