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प्रश्न
Oxygen combines with iron found in the rocks to form ____.
विकल्प
iron carbonate
iron nitrites
iron oxides
iron sulphate
उत्तर
Oxygen combines with iron found in the rocks to form iron oxides.
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संबंधित प्रश्न
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| Bio-geo-chemical cycles | Biotic processes | Abiotic processes |
| 1. Carbon cycle | ||
| 2. Oxygen cycle | ||
| 3. Nitrogen cycle |
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