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BIOLOGY CH24 Environmental Science — Science STD 9 — Question

Tamilnadu BoardEnglish MediumSTD 9ScienceBIOLOGY CH24 Environmental Science1 Mark
MCQ
Assertion (A) : Biosphere is a dynamic and stable system.
Reason (R) : There is a constant interaction between biotic and abiotic components in the biosphere.
  • ✓
    If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  • B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
  • C
    If assertion is true but reason is false
  • D
    If assertion is false but reason is true.
✓

Answer

Correct option: A.
If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
(a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion

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