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Which is NOT a step of decomposition?
APhotosynthesis
BFragmentation
CHumification
DMineralisation
Answer & Solution
Correct answer: A. Photosynthesis
1. The steps are fragmentation, leaching and catabolism.
2. Humification and mineralisation complete the list.
3. Photosynthesis is not a step of decomposition.
4. So the answer is photosynthesis.
_Source: NCERT Class 12 Biology, Ch 12 'Ecosystem'_
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