Nguyên nhân nào làm cho lao động tất yếu có xu hướng giảm.? Xu hướng này sẽ tác động như thế nào đến với tỷ suất giá trị thặng dư và khối lượng giá trị thặng dư?

swahili is an extremely rich and complex civilization, a set of ethnic groups articulated by a language and a series of cultural elements that fuse the african traditions, islam and indian culture. this growth was largely a result of the indian ocean trading network that brought in not just man-made riches, but also religious ideas, specifically islam, which had a significant impact on the local culture. furthermore, the development of the swahili language gave a common cultural unity to the people.

d

explanation:

it establishes america’s basic laws and fundamentals to its citizens.

answer; protectionism fosters competition and keeps price regulated;