How are global issues in Balance explain it in your own words ? Plz help

The development of greek culture was most influenced by the dorian invasion the region’s climate and geography the trojan war indo-european migrations

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 a. primary sources are historical documents, and secondary sources are modern-day documents.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

Once the constitution was approved, what more had to happen before it could go into effect?