PLEASE ANSWER ASAP In two to three sentences, answer how corn, tobacco, and wheat have a negative or positive impact on the native population in the Americas, European settlers, and/or people in Europe, Africa, or Asia?

the great wall of china worked as a defense for the feudal states of the zhou dynasty to the north. during the warring states period more walls were put up to defend the borders of the different kingdoms. it was semi successful because despite the wall, the mongols eventually conquered china also the great wall provided protection to the economic development and cultural progress, safeguarded the trading routes such as the silk road, and secured transmission of information and transportation. @jayxboof

the difference is that white collar worker performs skills like worker as a scientist or well blue collars do physical work and they do services like being a cook.

yes u so smart, u no need me me slant eye is hard to open when i read u q