Because the need to "repeal" amendments was sometimes necessary and desired by the people, as in the 18th amendment.
Answer: mediator
Explanation: Mediator refers to an unbiased individual who gets involved on issues or conflicts between two or more people with the aim of resolving or quelling the trouble. The mediator may be an older or more experienced individual in the field or subject of discussion which can enlighten the conflicting parties and proffer adequate solution. In the context above, the professor assumed the role of a mediator.
Answer:
Granite is the <u>best known igneous rock</u>
Explanation:
Granite is a light colored igneous rock with grains large enough to be visible with the naked eye. Minerals composition in granite accounts for its red, pink, grey or white color with dark mineral grains visible throughout the rock. Granite can be easily identified as it is the most common igneous rock found on planet earth's surface. It is used to make many objects we encounter daily such as counter tops, paving stones, floor tiles and etc.
The answer is; reliability.
<em>Hope this helped! :)</em>
C, I'm pretty sure. A set of rules.