im pretty sure its eleven groups
In the years from 1900 to the present, life expectancy in the United States has drastically increased.
The tremendous increase in life expectancy during the last century may be the greatest human achievement.
In the 110 years between 1900 and 2010, the United States' life expectancy at birth increased from 47.3 to 78.7 years (Centers for Disease Control and Prevention/National Center for Health Statistics [CDC/NCHS], 2012, 2013). Declines in infectious diseases and fatalities disproportionately among the young caused this longer lifespan. After infectious diseases accounted for the majority of deaths, the leading causes of mortality were cancer and cardiovascular diseases. In the second half of the 20th century, these then became the focus of science and medicine.
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because they always try 2 lose their burden. And dismiss most of them without giving fair justice bcz they are low class people
The economic reason for exploration was to get the resources in the area while the religious reasons was due to the spread of the Christian religion.
<h3>What is exploration?</h3>
This is the term that is used to refer to the period that the Europeans came to the Americas and took over the control of the areas and the resources that they had.
There are several reasons for exploration of North America by theses people. Economically, the area had natural resources such as gold. The Europeans were interested in these resources. Also the Europeans were hoping to get more Christian converts as well
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