The early river valley civilizations benefited from being near rivers that provided water, transportation, and fertile soil.
I think the correct answer from the choices listed above is option B. Tobacco and other cash crops factor in to the development of slavery in the Americas since such crops required more labor than could be adequately met through immigration or indenture. Hope this answers the question. Have a nice day.
Answers: Educational websites, online newspapers, and possibly government websites.
Hope this helps :)
- Atargatis Jones
<span>to bring Nazi war-criminals to trial to recognize the Polish Provisional Government of National Unity and hold 'free and unfettered elections as soon as possible'.</span>