engineering recuitment FCI JE 2022 Mock Test for CE/ME/EE (Phase I & II) General Knowledge Indian Geography Soils
When we travel across the countryside, we see red soils in many regions. What is the reason for its colour?
1
Presence of nitrogen
2
Abundance of humus
3
Abundance of ferric oxides
4
Presence of magnesium
5
Other than those given as options