Geographers have identified three different types of regions. they are:

a) formal, fundamental, and fantastic
b) formal, functional and vocational
c) formal, functional and vernacular
d) informal, functional, and vernacular

C is the correct answer formal,functional and vernacular took the quiz today

It covered the territory of land across eurasia from northeastern europe to the pacific ocean.

They made a checks and balance system to equal power within the branches. the "check" meant that one branch would watch one branch and "balance" them if they were too powerful. if you want more info on this, i would just google checks and balance system.