Bauxite, the ore of aluminium, is typically formed by

Question

Accepted Answer

C. {'text': 'Decomposition of surface rocks and residual mass of weathered material', 'label': 'C'}

1. NCERT describes 3 modes of mineral formation.
2. Igneous/metamorphic minerals form from cooling molten material.
3. Sedimentary minerals like coal and iron form in layers under heat and pressure.
4. Residual formation: decomposition of surface rocks leaves weathered material with ores — bauxite is formed this way.
_Source: NCERT Class 10 Social Science (Geography), Ch 5 "Minerals and Energy Resources", §5.1_

Answer

{'text': 'Cooling of magma (igneous rocks)', 'label': 'A'}

Answer

{'text': 'Deposition in beds and layers under great heat and pressure', 'label': 'B'}

Answer

{'text': 'Volcanic eruptions on ocean floor', 'label': 'D'}