Choose the word or phrase that best completes each sentence. Ash from slash-and-burn farming was used as fertilizer by the
was used for raising crops in mountainous and hilly areas.
The Aztec modified their environment for farming by using

Answer #1  Maya

            #2 Terrace farming

            #3 artificial islands  

he was able to speed up production of the processing of seeds

the map that was shown mostly had eastern asia highlighted. the answer would mostly likely be "the spread of communism into eastern asia set the stage for the korean war."

hopefully this .