Answer:
The barrier isolated Eastern Europe from the rest of the world.
Answer:
American spy planes photographed Soviet missile bases on the island. Have a good day
Explanation:
The true answer is actually "C", not "a" because Giotto was an italian painter, anyway. There's a BIG difference in between painting and sculpting.
Allies
Some of those lost were Americans and the sinking hardened opinion in the United States against Germany and marked the beginning of the process which led to the USA entering the First World War on the side of the allies.