No, it is false that opium is a spice cherished by the Chinese, since opium is an opiate that is most commonly used as a narcotic, often in illegal form.
Geographic, physical and social factors. Geographic factors such as location, Physical factors such as mountains , rivers, lakes, etc. and socail factors such as language, culture, customs, etc.
Hope this helped.
I believe it is the Tigris-Euphrates river valley
The four main causes were: militarism, alliances, imperialism and nationalism - or as an acronym, M-A-I-N (this made it much easier for me to remember the causes)
I would say A and B are correct.