Moderate
Which of the following are secondary minerals:
Correct answer: D. All of the above
- A. Clay minerals
- B. Amorphous silicates
- C. Iron and aluminiumoxides
- D. All of the above
Explanation
Clay minerals, amorphous silicates and iron- and aluminium oxides are all secondary minerals formed through weathering or alteration of primary minerals. Therefore, the inclusive option is correct.
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