a man can not survive for a week without water
Man needs oxygen to survive. Oxygen is essential for cellular respiration, which produces energy for the body's processes. Without a constant supply of oxygen, humans cannot survive.
No oxygen, no water and no food would make for a quick demise of a man on Mars.
2 days
they die of thirst because you can only survive 3 days without water
With sufficient water and food a person could survive indefinitely. Without water, just 2-3 days in the summer months.
Living things can typically survive without resources like technology, artificial light, and man-made structures. They can adapt to various environmental conditions as long as they have access to essential resources such as water, sunlight, oxygen, and food.
food. heat and atmosphere would then be consumables. Yes, you could survive until out of these.
Without water, humans and the different types of food they eat, cannot survive. An average human can only live without water for about 3 days, so if there is no water, then humans can't survive. So, aslong as humans and/or any other living thing that needs water is alive, water will always be a necessity.
The real short answer is that Oxygen is the electron receptor, some species use sulfur. The long answer is oxidative metabolism. Oxygen is to be used in the release of energy from glucose during respiration.
If a person has sufficient food and water, he can survive indefinitely. Some form of shelter would also be good. Without water the person would be dead in a few days, depending on the season of the year,
Man vs. Man or Man vs. Nature. All the tributes are trying to survive. Without killing another person, or without being able to withstand the conditions of the Hunger Games, you would not survive long.