सुर्यबाट आउने मानव र अन्य जीवजन्तुहरुका लागि घातक मानिने परावैजनी किरणहरु ( Ultraviolet rays ) शौषेर लिने पृथ्वीको वायुमण्डलको सतहलाई के भनिन्छ ?

Option A

The Ozone layer or ozone shield is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation. It contains high concentrations of ozone (O3) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere.