Here is a breif picture with a world with out governments
Nothing, we are animals, ugg ugg
Governments are any kind of leadership group wether it be a tribal leader in Papua New Guinea or The President of the united states and the rest of the government that follows that.
With out a government or any kind of leadership figrue, research would stop, we would have no electricity, internet, alot of people would die due to law enforcement being everyones problem, not just police. More would die because of famine, Even more would die because of Epidemics.
Not to mention currancey would cease to exist.
you might class Government as a ruling body for a nation
But a goverment can be your soemthing as mundane like: boss at work.... he is "Governing" what you do, he rewards you for taking his crap and doing what he tells you by paying you. The same way a government should give you access to the basic amenities, provided you work and you do your tiny bit to make the country a little better.
Our national governments are much the same as our boss, except we in most cases elect our own bosses, because we beleive that they are the best person to represent us and they will do the most for us. We put up with their shit and they reward us by giving us cheap schooling, Social Services, Limited Hospital Cover, ETC.
Thats my two cents, i could right more but its almost 1 in the morning and i have work tomorrow , (and i am tired as well)
I hope it made sense and was intelligible