everyday science MCQ #904

About fifty percent of the Earth's crust, including the waters on the Earth and the atmosphere, is:

everyday science MCQ #904

  1. Question 1

    Q1. About fifty percent of the Earth's crust, including the waters on the Earth and the atmosphere, is:

    • A) Oxygen
    • B) Carbon Dioxide
    • C) Silicon
    • D) None of these

    Answer: Oxygen

    Explanation: Oxygen is the scientifically accurate choice. The concept tested here is core everyday science for MDCAT, ECAT, and general ability papers.