Ozone is a poisonous gas but it protects life? Give reason.

1.	Ozone is a poisonous gas but it protects life? Give reason.
Answer» Because ozone has reflect the harmful gas which comes from sun. The\xa0ozone\xa0layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (UVR) from the sun, protecting life on\xa0Earth\xa0from its potentially harmful effects. When the sky is clear, there is an inverse relationship between stratospheric\xa0ozone\xa0and solar UVR measured at the\xa0Earth\'s\xa0surface.\xa0Depending on where\xa0ozone\xa0resides, it can protect or harm\xa0life on Earth. Most\xa0ozone\xa0resides in the stratosphere (a layer of the atmosphere between 10 and 40 km above us), where it acts as a shield to protect\xa0Earth\'s\xa0surface from the sun\'s harmful ultraviolet radiation.

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