![________ is the International Day of Clean Air for blue skies observed?](https://www.gkseries.com/blog/wp-content/uploads/thumbs_dir/Copy-of-Online-Quiz-Made-with-PosterMyWall-1-pcrapc66zlrel6qkmarwqu3i88l1ri3dqlp0x4xz1c.jpg)
A) 5th September B) 8th September C) 6th September D) 7th September Explanations: The day of 7th September is observed as the International Day of Clean Air for blue skies in the world. the purpose of this day is to promote and facilitate actions to improve air quality.
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