After obtaining the data Tierra had brought back and confirming that the water quality at Albert Oasis met drinking standards, Professor Cadwell sent several students to the water's edge. They carried empty waterskins and several large collapsible water containers to fetch water, preparing to bring this precious fresh water back to camp as supplies for the next few days of exploration.
The desert sun gradually sank westward, and the evening breeze brought a touch of coolness. The students took turns scooping water from several sources in the oasis with buckets, while the others opened and prepared the empty waterskins, ensuring that every precious drop was properly stored.
Meanwhile, the other members of the camp began to get busy, gathering dry branches and dead grass for a fire.
Before long, a thin plume of smoke slowly rose, and the campfire gradually caught, bringing warmth and light.
Once the flames were up, they took out a large iron pot, set it over the fire, and poured in the water they had just collected.
"Remember, the water must boil for at least three minutes. Only then can most bacteria and microorganisms be killed, ensuring that it's safe." Professor Cadwell stood nearby and instructed them.
The students, including Tierra, nodded together.
Although they had learned this sort of thing countless times from books, and some of the seasoned hands had even gone into the field themselves,
With nothing else to do anyway, they simply stood watch over the large pot, observing as the water gradually changed from stillness to a boil. The sound of boiling accompanied the descent of night, like a melody unique to the desert night.
After it had boiled, they let the water cool naturally before carefully pouring it into sterilized waterskins, preparing for the next day's journey. Though this work