What are two differences between the
eastern and roman churches?

The Roman Catholic position is that the two Churches are nearly identical. The Orthodox position is that the differences are deep and profound. In fact, most Orthodox see the Roman Catholics and Protestants closer to each other than both are to the Orthodox. The list of differences is long.

Explanation:

how did justinian contribute to the byzantine empire?

one famous byzantine emperor was justinian i. justinian ruled from ad 527 to 565. belisarius was the commander who led these armies in an attempt to win back the old western roman empire. the war effort to take back the western part of the empire forced justinian to raise taxes on the people of the byzantine empire.

explanation:

mark brainliest and have a great day!