Which specific soil type in the Northern Plains is highly characterized by the heavy presence of calcareous 'Kankar' nodules in its lower horizons?

Correct answer: Bangar

Explanation: ✅ Correct Answer: C) Bangar 📚 Explanation: Bangar is the older alluvial soil found securely on the elevated river terraces of the Northern Plains, located safely above the regular river flood levels. A distinct geographical and chemical characteristic of this soil is the heavy accumulation of calcareous concretions known locally as 'Kankar' in its deep subsoil horizons. This incredibly high calcium carbonate content makes it comparatively less fertile than the newer Khadar soil.