जॉइन Examsbook
Most fish do not sink in water because of the presence of swim bladder air bladder air sacs5
प्र: Most fish do not sink in water because of the presence of swim bladder air bladder air sacs
- 1I and II are correcttrue
- 2II and III are correctfalse
- 3III and IV are correctfalse
- 4I, II, III and IV are correctfalse
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