Q: 7 (CDS-I/2004)

Assertion : In humid tropical climatic areas undissolved aluminium, iron and manganese accumulate and make soil unfertile
Reason (R) : High bacterial activity destroys humus.
question_subject: 
Geography
question_year: 
2004
question_exam: 
CDS-I
stats: 
0,1136,1664,1136,640,672,352