<span>He called it a reforming purge that was designed to help the
country. In reality, it was done to make room for his own party because
it was the spoil system in which the governmental positions would go to
party members, not to those who actually deserve it. During his first
term, he changed as much as 20% of government workers.</span>
Marbury vs. madison established this.
Answer:
Groundwater.
Explanation:
Becasue it's underground and not on the surface.
Writing or researching about a topic on which they feel strongly may be a difficult position for many historians. This is because as a historian, you're meant to provide unbiased information and opinion on any given topic. Granted, in some cases it may be completely acceptable to write with bias. I hope this answer is satisfactory.