Multiple choice

The red soils develop a reddish colour due to

  1. tropical monsoonal conditions

  2. the presence of potash and magnesia

  3. wide diffusion of iron in ancient crystalline and metamorphic rocks

  4. deforestation and over-grazing

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Red soils develop their characteristic reddish color due to wide diffusion of iron in ancient crystalline and metamorphic rocks, which oxidizes to form iron oxides. While tropical conditions contribute to the weathering process, the red color itself specifically comes from iron content, not from potash, magnesia, or deforestation.