can have sunlight,has something to do with photochemistry
2006-10-24 07:39:58 · 19 answers · asked by jaya p 1 in Science & Mathematics ➔ Chemistry
It demends on the environment that your stuck in. It's generally thought that people can live 3-5 days without water, but that can drastically be reduced in an extreme environment such as a desert.
If water is available people may survive a month or more without food depending on the environment and how much they have t move around.
2006-10-24 07:49:25 · answer #1 · answered by Anonymous · 0⤊ 0⤋
A person can live without food for quite some time, usually for many weeks. The body will use its fat and protein stores (muscles) to help it survive. If a person has a lot of fat stores (is very heavy), they will live longer than a person who has very little fat (very thin), so how long a person can survive depends a lot of the person. Of course, if you go without food for a few weeks,
you will be very weak since you have been using your own muscles for energy.
Water is a different story. A person will die within 3-4 days without water. The size of the person really doesn't make much difference.
2006-10-24 08:00:19 · answer #2 · answered by Jorge. 2 · 0⤊ 0⤋
Well, as a nurse I have seen people die from the above and in my anecdotal view people live for about 3 minutes without air, about 4 to 5 days without water and months without food if kept hydrated.
2016-05-22 08:22:15 · answer #3 · answered by Anonymous · 0⤊ 0⤋
7 days without water. longer without food. photochemistry only works with plant cells. it's worth a shot though. good luck
2006-10-24 07:48:11 · answer #4 · answered by phantasmo 4 · 0⤊ 0⤋
Without water, 4 days.
2006-10-24 08:08:03 · answer #5 · answered by SmartAleck 3 · 0⤊ 0⤋
A human being can live without food but not water, only for a few days. Water can constitute for 70% of the body, so it is esential for surviving.Sunlight gives energy but dosen'.t give water
2006-10-28 04:30:21 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Our need for water is more than our need for food. So we can survive for days without food. Without water for 2 wks. without food for 1 and 1/2 months.
2006-10-25 03:08:25 · answer #7 · answered by ? 7 · 0⤊ 0⤋
in military survival training, they teach us that a individual that is considered "fit" can live 3-7 days without water, and 30-90 days without food. without water 2-4 days can lead to insanity.
2006-10-24 08:55:14 · answer #8 · answered by Max J 5 · 1⤊ 0⤋
1-2 weeks w/o water.
1-1/12 months w/o food.
2006-10-24 07:51:35 · answer #9 · answered by April J 4 · 0⤊ 0⤋
I think its 3 days without water, if you had water but no food it would be longer. Sun light may give you some nutrients, not sure.
2006-10-24 07:48:24 · answer #10 · answered by metallica_rocks0122 6 · 0⤊ 0⤋