MCQ
Biofertilizers include
- ACowdung manure and farmyard waste
- BA quick growing crop ploughed back
- ✓$BGA$/Anabaena and Azolla
- DAll the above
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$I.$ Production of caffeine, tannin quinine
$II.$ More production of non-woody tissues
$III.$ Productions of hairs, thorns, spines
$IV.$ Production of hormone-like chemicals that interfere with insect metamorphosis
Select the correct pair