Aluminium is the most abundant metal on earth's crust.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The statement we need to evaluate is "Aluminium is the most abundant metal on Earth's crust." We need to determine if this statement is true or false.

2. **Identifying the Most Abundant Elements**: To assess the statement, we first need to know the most abundant elements in the Earth's crust. The most abundant element is oxygen (46%), followed by silicon (28%).

3. **Listing the Abundance of Metals**: After oxygen and silicon, we look at the abundance of metals in the Earth's crust. The relevant percentages are:
- Aluminium: 8.3%
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