Why is there a need to harness non-conventional sources of energy ? Give two main reasons.

Explanation

### Step-by-Step Text Solution:

1. **Understanding Conventional vs. Non-Conventional Sources of Energy**:
- Conventional sources of energy include fossil fuels like coal, oil, and natural gas. These sources are finite and will eventually deplete.
- Non-conventional sources of energy include solar, wind, hydro, and geothermal energy. These sources are renewable and can be replenished naturally.

2. **Reason 1: Finite Nature of Conventional Sources**:
- The first reason to harness non-conventional sources of energy is that conventional sources are limited and will not last indefinitely. As the global population increases and industrial activities expand, the demand for energy rises sharply.
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