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World Geography - 1 (Gen. Studies)

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Multiple Choice

Which of the following options represents the correct decreasing order of the rock-forming elements in terms of their availability in the earth’s crust?

  1. Iron > Oxygen > Silicon > Aluminium
  2. Iron > Silicon > Oxygen > Aluminium
  3. Oxygen > Silicon > Aluminium > Iron
  4. Oxygen > Iron > Silicon > Aluminium
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