Answer: The raids were fueled by social unrest following World War I, and a genereal fear of more left leaning idlogies following the russian revolution
Explanation:
The Europeans wanted to avoid interaction with Muslims and the Muslim monopoly on Indian ocean trade.
B a higher cost of living because more people will cost
Rome managed to overcome it's difficulties with having issues in it's leading structure and the highest chain in command; namely Roman generals at the time wanted glory for themselves which prevented them from beating Carthage for some period together with the fact that Carthage had the incredible general Hannibal. After they consolidated and joined forces together, they were able to beat Carthage after a campaign of war.
Hinduism's worship many gods that are parts of a whole soul (Brahman). Buddhism's don't rely on gods but how to stop suffering by right thinking and self-denial so they only worship the Buddah "The Enlightened One."
I hope this helps you:)