The correct order of the abundance of the elements in earth's crust is

Options

A. `O gt Si gt Al gt Fe`
B. `Fe gt Al gtSi gtO`
C. `Si gt Fe gt Al gtO`
D. `Al gtFe gtO gt Si`

Answer

To determine the correct order of the abundance of elements in the Earth's crust, we can follow these steps:

### Step 1: Identify the Elements
The key elements we need to consider for their abundance in the Earth's crust are:
- Oxygen (O)
- Silicon (Si)
- Aluminium (Al)
- Iron (Fe)

### Step 2: Gather Abundance Data
From the data provided:
- Oxygen: 46.1%
- Silicon: 28.2%
- Aluminium: 8.2%
- Iron: 5.6%

### Step 3: Arrange in Order of Abundance
Now, we will arrange these elements in order from the most abundant to the least abundant based on the percentages:
1. Oxygen (46.1%)
2. Silicon (28.2%)
3. Aluminium (8.2%)
4. Iron (5.6%)

### Step 4: Write the Final Order
The correct order of abundance of the elements in the Earth's crust is:
**O > Si > Al > Fe**

### Conclusion
Thus, the correct answer is that oxygen is the most abundant element, followed by silicon, aluminium, and iron being the least abundant among these elements.

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