For the first one, older books and stuff like that say there are 7, but more recently some geologists think they're 8. So, for right now, it's false.
True, Ancient Greece was a model for the U.S. government, but the founders left a few things out. But there are many facets of Greek democracy that didn't catch on.
True.
So you're answers are: True, True, False
James Madison played a great role in establishment of the US as a republic. During the writing of the constitution, the founding fathers were adamant that they wanted democratic system of governance. However, they were torn between a direct democracy and a republican democracy. James Madison dismissed a direct democracy since the US is a large country and thus impossible to be governed through direct pure democracy. Instead, the father of the constitution argued for a scheme of representation in a republican setting. He especially lauded such a government since it even catered for the rights of the minority than in direct democracies.
Answer:
Segregation of society, meaning black and white schools, hospitals ,etc.
The Catholic Church caused a lot of complaints but also helped Europe grow together and not have wars over what religion to follow.