Using the Earth's Resources: Potable Water Sources 💧 GCSE Chemistry Learning & Revision
Update: 2025-07-15
Description
This episode outlines various origins of drinkable water.
We identify fresh water as the simplest source to purify, requiring only filtering and sterilization.
In contrast, seawater desalination is presented as the most energy-intensive and costly method.
Finally, the text notes that wastewater treatment is a multi-stage process that demands less energy than making seawater potable.
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