Why were the Articles of Confederation replaced with the Constitution?

Which of the following describes a similarity between the american revolution and the french revolution? o a. both resulted in the creation of constitutions that are still in use. o b. both were influenced by enlightenment thinking about equality. o c. both rose out of the desperation caused by economic collapse. o d. both involved a colony revolting against an imperial government.

What is the main social system that existed in ancient china?

What are the biggest challenges facing the average american citizen today? explain.