everyday science MCQ #73

The most abundant element in the Earth's crust is:

everyday science MCQ #73

  1. Question 1

    Q1. The most abundant element in the Earth's crust is:

    • A) Silicon
    • B) Oxygen
    • C) Aluminium
    • D) Calcium

    Answer: Oxygen

    Explanation: Oxygen is the most abundant element in the Earth's crust by mass, making up about 46% of crustal weight, primarily in the form of oxides and silicates.