Question : Which of the following is the most abundant metal on Earth's crust?
Option 1: Magnesium
Option 2: Iron
Option 3: Copper
Option 4: Aluminium
Correct Answer: Aluminium
Solution : The correct answer is Aluminium
The Earth's crust is made up of oxygen, silicon, aluminum, iron, calcium, sodium, potassium, and magnesium. The most abundant chemical elements in the crust are oxygen (46.6%), silicon (27.7%), aluminum (8.1%), iron (5.0), and so on. So the most abundant metal on earth's crust is Aluminium.
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