Some colonists who were not persuaded by the political struggle joined the British for personal gain or military glory. Some joined out of sheer loyalty to the Crown — they still believed themselves loyal British citizens. There were also many American farmers willing to sell their goods to the British for profit.
I hope this can help maybe a little bit haha
The four river valley civilizations were the Tigris & Euphrates Valleys, the Nile River Valley, the Indus River Valley, and the Yellow River Valley. Civilizations developed around rivers because their waters provided places to hunt and fish. Also, as the rivers flooded, the lands around them became fertile.
Probably (3) Both communist...
..considering the economies of the two nations (almost non-existent) based upon internal market or upon trade with the "mother" communist nations (URSS for East Germany and China for North Korea).