In terms of importance to the spread of knowledge in the islamic world, which would you rank first? a. the scholars made advances in math and science. b. the scholars spoke different languages. c. the scholars came from different cultures. d. the scholars all understood arabic.

Round arches allowed the romans to create structures with

How did the russian revolution impact world war i? a) the russians required the allied powers to come to their aid and defeat the radical groups. b) the russians pulled out from the war, enabling the germans to focus on the western front. c) the russians created new technological advancements that were used by the allied powers to win. d) the russians created a new communist government that aligned with the central powers instead.

What are some inventions during the han dynasty?