What marks the boundary between the mesozoic and the cenozoic?

Which roman emperor was responsible for a major shift in the dominate religious attitude of the roman empire?

What are some effects outside of europe because of world war 1?

Question 4 which of the following is an example of libel? a. an anti-war supporter advocates overthrow of the government. b. a writer for the washington post maliciously prints false information about a lawyer c. a politician screams obscenities at a reporter on the air. d. a person sets up a flag burning demonstration.