Answer:
Explanation:Progressives sought to enable the citizenry to rule more directly. ... The Progressive Era saw reforms in U.S. citizens ' democratic representation. ... legislation, open primary elections, and greater citizen influence on the political process. ... that created the initiative and referendum processes for citizens to directly introduce
The correct answer is the Influenza Pandemic.
This Influenza (flu) Pandemic killed between 20 and 100 million people (estimates differ) - more than the war itself!
The source of the Pandemic is still not known, and people suggest such places as the US, China and France.
In 1950 it was 9% but increased to about 90% towards the end of the 1950’s sorry if this does not help
Humans use lots of water.