Arrange the following major elements present in the Earth's crust, in ascending order, in weight percentage: 1. Aluminium 2. Calcium 3. Silicon 4. Oxygen Select the answer using the code given below:
- A. 3, 4, 1, 2
- B. 4, 3, 1, 2
- C. 2, 1, 3, 4 ✓
- D. 1, 2, 3, 4
Correct Answer: C. 2, 1, 3, 4
Explanation
By weight percentage in the Earth's crust: Calcium (~3.6%), Aluminium (~8.1%), Silicon (~27.7%), and Oxygen (~46.6%). The correct ascending order is 2, 1, 3, 4.
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