fats are the reserve food in your body(in the form of adipose tissues), its deposition varies person to person,carbohydrates are the energy source in normal conditions , but when body doesnt get enough carbohydrates, it starts using proteins and fats for energy(normally in starving ),in addition fat helps as heat reservoir in cold, so in a way it is necessary to avoid any critical condition.. that's all i know :")
Yes, fats are essential. Unlike carbohydrate, fats and protein are essential for health and both are needed to sustain life. Without protein and fats in your diet, you would become ill and eventually die. You could live without carbohydrate but you cannot live without fats and proteins.
No
No
vitamins
No, they could not live without ice.
If you tell me who they are, I could answer this much more accurately. But yes, I can probably live without them, whoever they are.
It gives you strength and the human body can't live without fat.
you cant live without water or air
no
Well if they were vital, then you COULDN'T live without them, now could you?
You couldn't live without your lungs for even a second.
No