Austria-hungary’s power over the balkans was due to their devotion to their country, or extreme patriotism.
a. alliances
b. imperialism
c. militarism
d. nationalism

Fossils of glossopteris, an extinct fern, were discovered on which continents to support the theory of continental drift? check all that apply.

Which phrases describe oxygen's roles in earth’s atmosphere? check all that apply. allows fuels to burn forms clouds that produce rain is the gas that animals breathe is used by plants to produce food forms ozone that absorbs the sun's harmful rays

Identify the youngest layer in the figure ( have to click one letter)