Answer:
What structures where are the pics?
Explanation:
<span>The threat to internal validity is the Mortality. Internal
validity is the measure in which the causality of the stimuli studied
is analyzed, that is, if the results of the study are due to the
interaction of the variables analyzed or are due to the interaction with
other variables. <span>Mortality is an error that occurs if the
conclusions of the study are made only on the basis of the participants
who were from beginning to end in the investigation, without taking into
account those who left the study.
I hope my answer can help you.
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<span>D) the site of a prison for anti-apartheid activists.</span>
1659 The Failure of the Commonwealth
1688 The Revolution
1707 The Act of Union
1807 The Slave Trade Act
1815 The Battle of Waterloo
1855 The Bessemer Process
1914 - 1918 The First World War
1939 - 1945 World War II
