I believe gold, silk, and spices.
According to both Marx and Engels it is the conflict that drives humanity, the conflict between those who are oppressed and those who are the oppressors. This is according to them the motor of change of humanity. Class to Marx and Engels was a key factor in what they saw as the reconstructing and restructuring the society .
Answer:
It is an equation relating object distance and image distance with focal length is known as a mirror equation. It is also known as a mirror formula.
Explanation:
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civil disobedience...........