It wasn't until 2012 that Feely and a team from Oregon State University finally showed with certainty that acidification had caused the problem.
After the Persian War, Athens flourished in architecture and built up the city with help from the Delain League.
Destabilized the political structure of of many African states
French Franc was the currency during WW1 until 2002
Answer:
A. To keep invaders out of China's walls
Explanation: