Water Procurement & Purification Quiz

1. Which purification method is considered the most reliable when fuel is available?

2. Is clear, fast-flowing stream water automatically safe to drink untreated?

3. Which terrain feature is the best clue for finding a natural water source?

4. How long should water be kept at a rolling boil to purify it at normal elevations?

5. What size of filter is generally rated to remove bacteria and protozoa from water?

6. Does improvised charcoal filtration alone make water safe to drink?

7. What is a major downside of using a solar still for water collection?

8. What natural container in Malaysian forests sometimes holds trapped rainwater?