The two most abundant metals in the earth crust are

Options

A. Al, Zn
B. Ag, Au
C. Fe, Cu
D. Fe, Al

Answer

To determine the two most abundant metals in the Earth's crust, we can follow these steps:

### Step 1: Understand the Composition of the Earth's Crust
The Earth's crust is primarily composed of various elements, with oxygen and silicon being the most abundant. However, we are specifically interested in metals.

### Step 2: Identify the Most Abundant Metals
From geological studies, we know that the most abundant metals in the Earth's crust are:
- Aluminium (Al)
- Iron (Fe)

### Step 3: Compare the Abundance of Other Metals
While there are other metals present in the Earth's crust, such as zinc, copper, silver, and gold, their abundance is significantly lower compared to aluminium and iron.

### Step 4: Analyze the Given Options
The options provided are:
1. Aluminium, Zinc
2. Silver, Gold
3. Iron, Copper
4. Iron, Aluminium

From our knowledge, we can eliminate options 2 and 3 since silver, gold, and copper are not as abundant as aluminium and iron.

### Step 5: Confirm the Correct Answer
Between the remaining options, we find that:
- Aluminium is about 8.23%
- Iron is about 5.63%

Thus, the correct answer is **Option 4: Iron and Aluminium**.

### Final Answer
The two most abundant metals in the Earth's crust are **Iron and Aluminium**.

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