* Is rainwater safe to drink?

Given the rising concerns about microplastics, industrial pollutants, and atmospheric contamination, and considering different methods of rainwater harvesting and storage (e.g., rooftop collection with various roofing materials vs. open-air collection in rural areas), is untreated rainwater generally safe to drink…

* Can bleach kill viruses?

Given the current global focus on hygiene and sanitation, particularly concerning the spread of various viruses including, but not limited to, influenza, norovirus, and coronaviruses like SARS-CoV-2, can household bleach, specifically sodium hypochlorite solutions of varying concentrations (e.g., 5-8.25%), effectively…