The development of an atomic bomb by the united states did which of these? a. pressured german leaders to surrender b. increased tensions between truman and stalin c. worried the leaders of france and great britain d. led stalin to postpone a soviet invasion of japan

What is the main difference between primary and secondary sources? a. primary sources are historical documents, and secondary sources are modern-day documents. b. primary sources are derived from museums and archives, and secondary sources are created by history students and academics. c. primary sources are found in ancient places with a rich history, and secondary sources are found in historical journals and blogs. d. primary sources are created during a particular historical era, and secondary sources are created by studying primary sources.