Environmental Scientist
$24.99
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Value: $24.99
(as of Aug 09,2023 06:34:15 UTC – Particulars)
An environmental scientist gives clear water to the town of Philadelphia. In a go to to the Fairmount Water Works, he explains how water is delivered to such crops, purified, and despatched on to houses and factories and why this water purification plant represents a historic achievement.
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