The communist revolution in Cuba is the correct answer.
72,000 because it's 20 miles per second times 60 equals 1,200 minutes times 60 equals 72,000 miles per hour
In general, an economic recession refers to when a country or state is undergoing a period of slow economic growth (sometimes the growth is negative). It is less severe than a depression.
Your teacher may have told you something specific that they want you to write here. If not, I would say it would be the glorification or demonization of any historical figure. Worshiping a certain figure by giving them constant praise and attempting to excuse every one of their immoralities, or showing a hatred of a certain figure by emphasizing their immoralities and attempting to belittle or invalidate their good deeds and accomplishments.
There are 10 years in a decade. Hope this Helps:)