The correct answer is D.
The open door policy is a concept in foreign relations and economy. It originally postulated that should exist the same commercial conditions of the great powers in China.
The first advances were made by the United States in the Open Door Notes of September-November 1899 sent to the major powers by Secretary of State John Hay. <u>The purpose of these notes was to get the powers to declare that they would defend the territorial and administrative integrity of China </u>and that they would not interfere with the free use of the Chinese ports located within their spheres of influence in China.
During the Industrial Revolution, labor unions played a critical role in empowering workers. Not only were they effective in helping improve factory conditions and pay rates, they offered workers an important entry point into the political sphere, where they came to embody a powerful constituency with demands and views that required representation.
Answer:
first one: Bust. second question answer: the portrait sculpture The Four Tetrarchs symbolizes the concept of the tetrarchy, rather than providing four personal portraits.
Explanation:
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lack of any plumbing. (people used chamber pots instead of toilets.)
Disease from lack of plumbing and hygiene. (people didn't know they needed to wash their hands)
Dense population not much personal space. Contagious disease spreads easily.
In the early 1900's there were factories in cities that caused lots pollution. Air pollution and water pollution. Both types led to shorter life expectancy and health problems.
The city residents who worked in the factories faced possible death from the dangerous machine conditions. People lost body parts and could burn themselves