Activity for Nina‭

Type	On...	Excerpt	Status	Date
Answer	—	A: Water filters - why sand and rocks? Any little bit a person can do that can increase their chances of staying healthy is not only important, but potential lifesaving. I have lived in the bush and was in the military and in an emergency situation, you definitely want to think about water cleanliness. No, you may not be able to guarant... (more)	—	over 9 years ago