European colonization of the Americas led to the spread of diseases— including smallpox, measles, and influenza — that were endemic in the Eastern Hemisphere among Amerindian populations and the unintentional transfer of disease vectors, including mosquitoes and rats.
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Explanation:Farming began a process of intensification, which meant that many more people could be sustained in a given land area since more calories could be produced per acre. As a result, the world population rapidly rose.
The correct answer is E.) the ability of citizens to enact a law.
A referendum refers to when a state legislature proposes a new law to the citizens of a particular state. This law change is then voted on by the citizens of a state on a ballot. A simple majority in favor of the law will result in the law taking effect.
The use of referendum is an example of direct democracy. This is because the citizens of a state are voting on whether a proposed law will actually be implemented. This is a drastic change from having the state legislature decide for the citizens.
The Minoan culture of crete developed a commercial empire during 2000-1500 B.C.<span />
The first transcontinental rail passengers arrived at the Pacific Railroad's original western terminus at the Alameda Mole on September 6, 1869 where they transferred to the steamer Alameda for transport across the Bay to San Francisco. The road's rail terminus was moved two months later to the Oakland Long Wharf about a mile to the north.