Question

Arrange the following elements in decreasing order of their weight in composition of earth's crust. 1. Silicon 2. Oxygen 3. Iron 4. Aluminium Select the answer using the code given below.

A 1-2-3-4 Correct Answer Incorrect Answer
B 2-1-3-4 Correct Answer Incorrect Answer
C 2-1-4-3 Correct Answer Incorrect Answer
D 1-2-4-3 Correct Answer Incorrect Answer

Solution

The Major Elements of the Earth's crust: Elements By Weight (%) 1. Oxygen ---46.60 2. Silicon -----27.72 3. Aluminium ------8.13 4. Iron------------ 5.00 5. Calcium---------3.63

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