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Railways PYQCBT 1 2016

RRB NTPC · Question 91

What is the reason for the colour of soil being red in some parts of India? A. Presence of magnesium B. Presence of phosphate C. Presence of ferric oxide D. Presence of manure soil

  1. B

  2. A

  3. D

  4. C

Show answer & explanation

Answer: (D) C

Explanation

Red soil gets its colour from iron oxides (ferric oxide) spread through crystalline and metamorphic rocks; it looks yellow when hydrated.