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The heavier silicates named as 'Sima' or silica + magnesium are most abundant in the

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The heavier silicates named as 'Sima' or silica + magnesium are most abundant in the Answer: ocean floors

Question context

This question is part of 📚 General Knowledge within the broader 🌐 Current Affairs & GK subject and appears in the DemoPaper-Pakistan preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.