How did keplers discoveries contribute to astronomy?
answers: A they supported the heliocentric model. B they established the laws of planetary motion. C they explained how the sun rises and sets. D they made astronomy accesible to people who spoke italian.

“from stettin i the baltic to trieste in the adriatic, an iron curtain has descended across the continent? ” the term iron curtain refers to which of the following? a. a military operation b. communism c. hard-line politics d. machine-driven battles e. unyielding diplomacy