Physical and Chemical Changes — Science STD 7 — Question
Gujarat BoardEnglish MediumSTD 7SciencePhysical and Chemical Changes2 Marks
Question
How ozone layer acts as a protective shield?
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Answer
The ozone layer protects us from the harmful ultraviolet radiations, which come from the Sun. It absorbs ultraviolet radiations coming from the Sun and breaks down to form oxygen. In this way, ozone layer absorbs harmful ultraviolet radiations.
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