How did warfare affect the civilizations of greece rome and the vikings

Which type of map is shown in the image

What evidence does the writer give to support his argument about coral reefs? a) he speaks of the activities of coral polyps. b) he describes the composition of the great barrier reef. c) he emphasizes the ways in which coral reefs are fragile. d) he points out the ways that scientists do research on the reefs.

The creation of the trans-siberian railway allowed people to travel across russia. how could this railway impact russian culture?