8. Which of these is not a requirement of a civilization?
A. Specialized Workers
B. Record Keeping
C. Weak Technology
D. Complex Institutions

What is the purpose of biofertilizers? a reduce pollution b. reduce insect threats c. reduce erosion d reduce herbicide use select the best answer from the choices provided 0 0 0 0

The event shown in the map is a cause of which of the following? *pic* gadsden purchase battle of the alamo bear flag revolt settlement of texas

During the 1800s, an important pull factor for immigrants to the united states was