Which one of Zn, Al and Fe will satisfy the following? Answer with justification.
It is the most abundant metal in the earth's crust.

Explanation

To determine which metal among Zn (Zinc), Al (Aluminum), and Fe (Iron) is the most abundant in the Earth's crust, we can follow these steps:

### Step 1: Identify the Abundance of Each Metal
- **Zinc (Zn)**: Zinc is not one of the most abundant metals in the Earth's crust. Its abundance is approximately 0.0075% by weight.
- **Aluminum (Al)**: Aluminum is the third most abundant element in the Earth's crust, making up about 8.23% by weight.
- **Iron (Fe)**: Iron is the fourth most abundant element in the Earth's crust, accounting for about 5.23% by weight.

### Step 2: Compare the Percentages
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