Summarize the governmental changes that have occured in this region between the 1700s and the late 1900s

How would i answer this for an exam?

Which ofbthe following is a characteristic shared by both brazil and mexico

What is the difference between the cultures of central asia and the caucasus region? the majority of people in central asia are muslim; the majority in the caucasus region are christian. the primary language in central asia is armenian; the primary language in the caucasus region is russian. central asia has been plagued by ethnic unrest; the caucasus region has had little ethnic conflict. the effects of soviet rule can still be seen in central asia; the caucasus region has developed its own identity since the fall of the ussr.