B. Oil is a nonrenewable resource. I hope this helps!
Villa's dominance in northern Mexico was broken in 1915 through a series of defeats he suffered at Celaya and Agua Prieta at the hands of Álvaro Obregón and Plutarco Elías Calles. After Villa's famous raid on Columbus, New Mexico, in 1916, U.S. Army General John J. Pershing tried unsuccessfully to capture Villa in a nine-month pursuit that ended when the United States entered into World War I and Pershing was called back. Villa retired in 1920 and was given a large estate, which he turned into a "military colony" for his former soldiers
so A
The country that faced a unity crisis due to having a large variety of ethnic groups was D.)Austria-Hungary.
<h3>Which groups were in Austria-Hungary?</h3>
Austria-Hungary was an empire that comprised of several ethnic groups including Serbs, Bosnians, Croats, Hungarians, and Austrians.
These groups wanted independence for themselves and this led to a lot of strife in the empire.
Find out more on Austria-Hungary at brainly.com/question/24213561
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The correct answer is both states actively promoted the development and spread of Islam.
There were 10 slave states and 11 free states