Give reasons
Aluminium alloys are used to make aircraft body.

Explanation

### Step-by-Step Solution:

1. **Light Weight**:
- Aluminum alloys are significantly lighter than many other metals, which is a crucial factor for aircraft. The reduced weight helps improve fuel efficiency and allows for greater payload capacity.

2. **High Strength**:
- Despite being lightweight, aluminum alloys possess high tensile strength. This means they can withstand significant forces and stresses during flight without deforming or breaking.

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