What is meant by the efficient use of energy. State the full form of I.E.A.

Explanation

### Step-by-Step Solution

1. **Understanding Efficient Use of Energy**:
- The efficient use of energy refers to using energy in a way that maximizes productivity while minimizing waste. This means utilizing energy resources effectively to reduce costs and environmental impact.

2. **Benefits of Energy Efficiency**:
- Energy efficiency leads to a reduction in the amount of energy consumed. This not only lowers energy bills but also decreases greenhouse gas emissions, contributing to a healthier environment.

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