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Ecosystems — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYEcosystems1 Mark
MCQ
In which layer of atmosphere ozone is maximum concentrated?
  • A
    Troposphere
  • B
    Stratosphere
  • C
    Mesosphere
  • D
    Ionosphere
✓

Answer

  1. Stratosphere

Explanation:

Ozone layer is a region of concentration of ozone molecule. O3​(O2​ + O) in the earth's atmosphere. The layer lies in the stratosphere at an altitude of 18-50 kms. The ozone layer naturally shields earth's life from the harmful effect of the Sun's ultraviolet radiations.

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