How can we save the Pyramid of Giza from the dangers it faces today? (jagged outer shell problem)

Which of these works from the italian renaissance exhibits contrapposto?

The source of wealth for the city-states of the east african coast was trade between the interior of africa and the far east. true false

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 a. primary sources are historical documents, and secondary sources are modern-day documents.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