Is managment a science an art or science

How long does each side take in a supreme court case to make its oral argument

How does the concept of competition relate to the arms race between the us and the soviet union during the cold war?

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 a. primary sources are historical documents, and secondary sources are modern-day documents.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.