Discussion
Assertion (A): A residue arising concentrated at a mill is more attractive than one scattered across fields.
Reason (R): Collection and transport usually dominate the cost of using a residue.
Select the correct answer from the options below.
Answer: B
Correct answer: Both A and R are true, and R is the correct explanation of A
Both statements are true and the reason explains the preference. Residues are bulky and low in density, so gathering them from a scattered source and moving them to a processing point often costs more than the material is worth.
A residue arising continuously at a mill avoids that cost almost entirely: it can be handled by conveyor at the point where it appears. This is why rice husk and bagasse have well established outlets while straw, far more abundant, is still largely burnt in the field.
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