Activity for Benâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Answer | — |
A: What is a good substitute for water purification tablets Some methods for purifying water are: Iodine Bleach Boiling Filter Systems Each has pros and cons in terms of taste, purification, convenience, and costs. (more) |
— | almost 10 years ago |