I believe it is the Sumerian.
B.68.5×10^-8 is the only possible answer
Answer:
Federalism has evolved over the course of American history. ... Because the powers rarely overlapped, dual federalism is also known as 'layer cake' federalism. Dual federalism was used in this country for a long time. However, by the 1930s, 'layer cake' federalism began to morph into 'marble cake' federalism.
Three major factors that contribute to Africa's lack of economic and human development would be extreme corruption in government, a lack of sustainable resources, and seemingly endless tribal warfare.
The answer is A. It included pyramids, tombs and a ball field.
