Jonas salk became well known in the early 1950s because he

What actions did americans take to show their patriotism after pearl harbor?

Why did countries not allow jewish refugees asylum?

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.