According to FEMA, which choice below is NOT a recommended way
to purify water after a disaster?

A.
Distilling the water for twenty minutes

B.
Adding 16 drops per gallon of household liquid bleach to the water

C.
Adding water treatment tablets to the water

D.
Boiling from 3 to 5 minutes

Explanation:
FEMArecommends that water treatment products sold in camping
or surplus stores should not be used, unless the only active ingredient
is 5.25 percent hypochloritE. When adding liquid bleach, it should
contain 5.25 percent hypochlorite and no other added cleaners or
scents. Distilling the water is the most highly recommended method,
as it also removes other chemicals and heavy metals, as well as most
microbes. Source: Emergency Water and Food Procedures, Federal Emergency
Management Agency, April, 1997.