Answer:
A quick and simple answer no, it is not. The gas is so light it dissipates quickly and escapes into space.
Explanation:
Answer:
C. The closeness of the civilizations made it easier for them to communicate or conquer each other.
Explanation:
Usa test prep confirmed.
Answer:
foreign epidemics and advanced weaponry
Explanation:
Answer: World War I, also known as the Great War, began in 1914 after the assassination of Archduke Franz Ferdinand of Austria. His murder made a big impact across the country.
Explanation: hope this helps