How does ethnocentrism differ from cultural relativism

Ethnocentrism basically means thinking or believing that your culture is the best and all the others suck.

Cultural relativism is trying to understand another culture's way of being and how it can relate to yours, without putting them down.

The changes to agriculture in the united states since 1900 is that increased mechanization has increased food production, thereby increasing the need for labor. there has been an increased need for higher speeds of food production due the fact that the population in the united states continues to rise.