Answer:
Here you go it's D all of the above.
The correct answer is A. Salt mines in the Sahara desert
Salt was extremely important at that time and was even used as currency often because it was expensive.
Answer:
la migracion de trabajadores la separacion de los miembros de la familia las largas horas de trabajo y el hacinamiento que resulta de la industrializacion pueden conducir a tensiones sociales y enfermedades debido a la mala nutricion y el estres
Answer:
Another cause of tension was that the Soviet Union was trying to spread communism. The U.S. was against communism and they took leadership of containment policy. The Containment policy was the U.S. approach to trying to prevent communism spreading. ... The soviets trying to spread communism.
Is there any rest of the Question so I can answer it, Please?