A
Burning crop residue in-situ to quickly clear fields for the next sowing cycle
B
Removing crop residue directly from agricultural fields for industrial uses like biomass pelleting and bio-ethanol
C
Managing crop residue inside the field using machinery like Happy Seeders
D
Leaving crop residue to decompose naturally without any human intervention
Correct answer: (b) Removing crop residue directly from agricultural fields for industrial uses like biomass pelleting and bio-ethanol
Explanation
Option B is correct because ex-situ management involves removing residue from the field for external industrial utilization. Option C describes in-situ management, while Options C and D do not represent ex-situ processing.
Same topic · past papers
UPSC has asked this before
These previous-year questions sit on the same topic. Open one to practise the earlier ask.