One factor essential to the development of early civilization was the use of a standard medium of exchange.
the use of a standard medium of exchange.

the taking of an annual census.
the taking of an annual census.

the emergence of a distinct caste system.
the emergence of a distinct caste system.

the ability to produce surplus food

bujías y una hora antes y no me parece muy difícil

the outcome of 1970 oil crisis in united states was that, they began to search ways on how to reduce oil.

in 1970 was a period when there were energy and oil crisis. those who were major centers for industrialization were forced to keep way from supplying of petroleum.

some of the result of this crisis was economic growth became stagnant because prices of oil surged.

due to the increased prices some countries like mexico and norway benefited.

depending on what kind of map for example a pltical maps works in many ways this iss how it works it shows the areas and places the democratics and the repbulcicans reside for example if   texas chooses trump for president there a republican state and if   califronia chooses hillary there a democratic state.

possession of power

exercising of power

class and power