What technology has most significantly contributed to the diffusion of cultural elements such as language?

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.

i think u are supposed to write a long-essay answers to the long-essay questions

presidency should be the title

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)