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STD 12 - 11. organisms and populations — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 11. organisms and populations1 Mark
MCQ
In the oceans, the environment is perpetually dark at
  • A
    More than $100\,m$
  • ✓
    More than $500\, m$
  • C
    Less than $100 \,m$
  • D
    Less than $500 \,m$
✓

Answer

Correct option: B.
More than $500\, m$
b
Deep $(>500 \,m )$ in the oceans the environment is perpetually dark and its inhabitants are not aware of the existence of celestial source of light

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