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Primary sources are historical documents, and secondary sources are modern-day documents.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.

What was the earliest settlement shown on the map?

Enforces the laws. a.legislativeb. executivec. judicial

10 points per question and brainlist 1. name four of the ruling dynasties of china. describe at least three contributions to society from each dynasty. 2. why did the qin ruler zheng burn chinese literature and philosophy books? how did the han dynasty establish a strong and effective government? why did people rebel against the sui rule? 3. what new technologies were invented during the tang dynasty and fully developed in the song dynasty that would eventually have a great impact on the world? explain why this technology had such an impact. 4. who were the invaders that seized control and took over the song dynasty? 5. how was china's history affected by its policies of isolation from the outside world during the ming dynasty?