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.
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