Technically no, someone could live quite well on their own by themselves, but life is much easier when people work together, and generally it is considered good for psychological reasons as well.
Yes.
human beings need nitrogen for building proteins and o2
if you dont you will die
to fulfill the emptiness that all human beings feel within. humans are social creatures and need to enteract with other human beings, thus relationships, whether it be romantic, friends, co workers, etc.
A person does not NEED privacy. We, as a human beings have a right to privacy.
i need an awnser!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Oxygen is used to help people breathe in and out
The basic need if a human being is food, shelter and clothing. These are things that he cannot survive without.
we exhale carbon dioxide, which is what plants absorb.they need that to live.
Calculation, Both need energy for proper functioning.
Hell To The Yeah no i don't think slavery is cool as all the human beings have their own rights no one is supposed to be working for other except in need of money
No. Koalas cannot do tricks: neither do they need to, as such activity is purely for the amusement of human beings.