Why human need water & fire???

Question

Why human need water & fire???

Answer 1

we need water because it makes up a large part of our body. we couldnt work without it. fire we dont NEED but it is a WANT to be able to cook food and what not.

Answer 2

To survive.

Answer 3

they don't!

what they really need is beer & ice!

Answer 4

I don't know so much about fire, but we'd die without water.

We need to be able to digest our food...D8  We can go weeks without food, but not more than a week without water because it's what makes us...us.  We eat, water is needed to help digest.

No water=no plants=no animals=no people food

Answer 5

I answer the fire part as an insider (metallurgist)

Human existence in prior of all other beasts and rule of planet Earth iwas established by the invention , and control of fire

by humans.

Thanks fire, our killer bacterias and viruses become absolute during we preserve our food, therefore we were able to multiply by spread, gain sucess over other mammals who are unable to maintain the use of fire.

Controlled fire has many advantages against our first enemy

extreme weather conditions, as heat or frost.

By our age .we start our computers, refrigerators, airconditioners to use by gaining knowledge about further properties of fire in electronics.