MCQ
In the process of sewage treatment, the activated sludge is digested by ______
- AFungi
- BAerobic bacteria
- ✓Anaerobic bacteria
- DViruses
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(I) Frenkel defect: Electrical neutrality of the compound is preserved.
(II) Schottky defect: Density of the substance decreases.
(III) Schottky defect: Combination of vacancy defect and interstitial defect.
(IV) Frenkel defect: Small difference between size of cation and anion.