an ozone shield is a prerequisite for terrestrial life.Why?
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The earth is protected from excessive ultraviolet rays by an atmospheric ozone layer. The ozone layer acts as a shield to absorb the UV rays, and keep them from doing damage at the Earth's surface. ...
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The earth is protected from excessive ultraviolet rays by an atmospheric ozone layer. The ozone layer acts as a shield to absorb the UV rays, and keep them from doing damage at the Earth's surface.
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