What caused the fall of the roman empire?
a > defeat by greece in the pyrrhic war
b > lack of cultural cohesion
c > land region was too large to defend
d > peasant rebellion
(select only one option! )

What is the approximate chemical composition of the solar nebula?

The vegetation that thrives in the tundra is limited to a. mosses, barley, wheat, and corn. b. coniferous trees. c. dwarf shrubs, mosses, lichen, potatoes, and beans. d. mosses, lichen, algae, and dwarf shrubs.

Which was not a country that massively built up its navy in the early 1900s? germany china united statesbritain