The main elements required for survival are food, fire, shelter and water. Their order of importance will depend upon where you happen to be. In the desert water will head the list; in polar regions shelter and fire will be the main concerns. Ordering your priorities is the first step to survival. It takes a healthy person quite a long time to die of starvation, for the body can use up its stored resources, but exposure to wind, rain and cold can be fatal even in mild climates and death comes in only minutes in the icy waters of the poles. Food is rarely the first prior- ity. Even in those places where it is difficult to find, there are usually other problems to face first. Shelter will often be the prime necessity in extrenmes of climate or temperatures such as in the frozen polar regions or in the baking deserts. The need for fire is closcly linked. It takes a healthy person quite a long time to die of starvation, for the body can use up its stored resources, but exposure to wind, rain and cold can be fatal even in mild climates and death comes in only minutes in the icy waters of the poles. Food is rarely the first prior- ity. Even in those places where it is difficult to find, there are usually other problems to face first. Shelter will often be the prime necessity in extrenmes of climate or temperatures such as in the frozen polar regions or in the baking deserts. The need for fire is closcly linked. Question: The basic need that may not be equally important as the others in extremely cold places is : a, water; b, fire; c, shelter; d, none of above