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According to the special theory of relativity,if a 30-year old astronaut sent on a space mission is accelerated to speeds close to that of light,and then returns to earth after 20 years as measured on earth,what would be his biological age upon returning?
Farmers And Merchants
Refers to the traditional backbone of local economies, especially before industrialization, representing those who produce food and goods and those who trade them.
Chinese Immigrants
Relates to people from China who migrated to various countries around the world, particularly notable in the 19th and early 20th centuries to the United States for railroad construction and mining.
Western Gold Fields
Areas in the western United States, particularly in California and Alaska, where gold was discovered in the 19th century, leading to gold rushes and significant migration.
Seasonal Workers
Individuals who are employed in temporary jobs that correspond to certain seasons of the year, often in agriculture, tourism, and holiday-related industries.
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