It was primarily the "Open Door Policy" that opened relations between china and the united states, since this made it possible for many western countries to engage in trade with China.
I pretty sure it was the regulatory reforms, however, they were mostly know as the Educational Reforms and Prison Reforms separatly
Answer:
protection of air, land, water, biodiversity, and the renewable natural resources
Explanation:
Due to the urbanization and also the advancement of the technology in the 20th century, many natural resources like air, water, land and biodiversity started to get exploited.
There is the increase in the levels of the pollutants in air and water and land is being degraded. There is non stop use of the natural resources and not taking the care of their sustainability.
Thus protection of these natural resources emerged as a major issue then.
the Mayans devolved a hierarchical government ruled by kings and priest, they lived in independent city states consisting of rural communities and large urban ceremonial centers, there were no standing armies, but warfare played an important role in religion, power and prestige.
Rockefeller and Andrew Carnegie use their money for the public good in a way that they embarked on huge, independent philanthropic efforts.
At the beginning of the 20th century, Carnegie and Rockefeller, who were the richest men in the nation, started massive, independent philanthropy initiatives. In the final decades of his life, each donated hundreds of millions of dollars. And each endowed a foundation that continues to be active in philanthropy.
Carnegie and Rockefeller focused on issues like health care, scientific research, and education in order to address the core causes of major global issues. They donated money to scientific advancement.
To learn more about Rockefeller and Andrew Carnegie here
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