“Water treatment” is to get rid of contaminants in the water being processed in a treatment facility to make the water safe, and potable.(drinkable)
No, this is false!
Renewable resources can be syntesized by humans, or not: some of them can, and some can't. This is not what makes them renewable, instead it's the fact that they will still be present in the nature after usage - they will be replaced (the sun will still shine tomorrow even if we harvest its power).