19. The Eastern Roman Empire lasted in one form or another until a. Constantinople was captured by the Ottomans.
b. Charlemagne was crowned Holy Roman Emperor
c. Viking raiders ended it.
d. The Grillat Schism in 1054

Select the correct text in the passage. the moving continents affect all subsystems on earth. which sentence identifies a potentially negative consequence of shifting continents? the supercontinent pangaea began to break up about 175 million years ago. [during this process, more coastline was exposed as the landmasses separated]. [the rearrangement and displacement of these huge landmasses resulted in the diversity of plants and animals we see on earth today]. [the movement of the plates sometimes leads to earthquakes and tsunamis]. however, over the long course of earth's history, their effects are usually minimal. in oceans, the plate movements usually lead to seafloor spreading. [seafloor spreading often results in the formation of underwater ranges of mountains].

What causes heat transfer in fluids

Which season occurs in the northern hemisphere when the sun is at its lowest point in the sky