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World Health Organization (WHO) quality air standards were not met by a single country in the year 2021, the year of recovery from COVID. A pollution survey collected data from 6,475 cities around the world. The heavy smog in all of them were not up to par with the standards, which scientists claim is due to the relapse from COVID. 

 

Photo by: https://pixabay.com/photos/city-smog-gray-building-4772482/

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lab grown 3D skin tissue

Biotechnology engineers managed to grow a 3D skin tissue glove that could match personally to patients. The glove could be used to replace the skin

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