The answer should be A. to maintain low air pollution levels.
Answer:
Infilterated- Spread into or invade (A tissue or a organ)
Virginia plan- Unsuccessfully proposed at the Constitutional Convention
New Jersey- was a proposal for the structure of the U.S. federal government put forward by William Paterson at the Constitutional Convention in 1787.
Delegate- A person sent or authorized
3/5 Compromise-slavery- The compromise counted three-fifths of each state's slave population toward that state's total population for the purpose of apportioning the House of Representatives
The great Compromise- was an agreement made between large and small states which partly defined the representation each state would have under the United States Constitution, as well as in legislature.
Articles of Confederation- The Articles of Confederation and Perpetual Union was an agreement among the 13 original states of the United States of America that served as its first constitution.
The system of escape routes and hiding places for runaway slaves was known as Underground Railroads.
In the US, slavery led to the creation of such escape routes and safe houses in order to help slaves escape and lead a normal life after that. They would either run to Canada or free states within America which abolished slavery. One of the most famous leaders was Harriet Tubman.
The influenza was a strain that people had no immunity.
The correct answer is C) poor working conditions had resulted in many premature deaths.
Many labor unions formed during the late 19th and early 20th centuries because poor working conditions had resulted in many premature deaths.
That was an important reason, among others, for workers to organize and join forces creation labor unions during the 1800s and 1900s.
For instance, during the Gilded Age, many businesses men, and investors amassed great fortunes at the expense of the workers. These wealthy owners exploited workers. They had big and profitable companies exploiting the workers.
These workers spend long hours in the fabrics working under unhealthy conditions, with no ventilation and earned low salaries.
