Most definitely.
A person cannot survive more than three days without shelter in severe weather. Shelter is as crucial as fire, water and food.
It depends on the local climate, and exactly what you mean by "shelter". In some climates, there's no real reason you shouldn't be able to survive indefinitely without shelter.
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,
Without protection, a person would not survive long on Mars due to the lack of breathable air, extreme cold temperatures, and intense radiation exposure. To survive on Mars, a person would need a life support system providing oxygen, heating, shelter, and protection from radiation.
Very hard. Without water, a person will not last long. It takes a specialized form of life to survive in the little/no water dessert. People can die in a desert very quickly without enough water to live.
Food water shelter is what a person needs to survive.
No. Without blood circulating in the body, we can't survive.
they can survive like you and I without too many problems
Yes.
No
3 minutes
A person can survive without a computer yes. A person will end up urinating themselves if they do not have a toilet break. A person will only survive 2 - 10 days depends on the weather and heat.