One reason for the development of amn early civilization in the Tigris-Euphrates river valley was that.<span>periodic flooding </span>left<span> rich soil, which was ideal for farming.</span><span> </span>
No, Europe is made up of many different countries such as France, Italy, United Kingdom, Spain, and many more.
It was caused by the sharp rise in the price of opium was seized upon by some of the Cohong trading houses and smugglers.
It resulted in the Boston massacre of 1770.
