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STD 12 - 12. ecosystem — Biology STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceBiologySTD 12 - 12. ecosystem1 Mark
MCQ
An ecosystem must have continuous external source of
  • A
    Food
  • B
    Minerals
  • ✓
    Energy
  • D
    All of the above
✓

Answer

Correct option: C.
Energy
c
It’s obvious.

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