Question

In 1999 the NRDC, Natural Resources Defense Council, conducted a study of bottled drinking water, revealing that bottled water companies are under no obligation to CHECK for...? A.Parasites B.Viruses C.Fungi D."Vibrio vulnificus"

Answer 1

B. viruses

Viruses are often thought of as similar to bacteria, although they have many key differences. The most important when it comes to filters is the fact that viruses can be tens or hundreds of times smaller than most bacteria. This makes them exceptionally hard to filter and most water filters are not fine enough to remove virus particles. So it is clear that viruses are sometimes difficult to get removed. Hence bottled water companies are under no obligation to CHECK for viruses.