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White smoke or fog isolated on black background.
Hand woman picking up plastic bottle cleaning on the beach , volunteer concept
Friendly smiling millennial diverse female colleagues keeping social distance, greeting each other by bumping elbows instead of hugs or handshaking, preventing covid 19 coronavirus infection spread.
Plastic bottle in the ocean
2 Drinking Water Quality Officer perform effective assessment, monitoring reverse osmosis systems to maintain high standard, efficiency, safety, while controlling contamination through expert testing

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