I believe it's upper and lower
Answer:
Everyday experiences
Explanation:
Ideas from research could come from different variety of sources.
Ideas from everyday experiences refers to a form of ideas that arrive through the daily observation that we made from normal occurrences or phenomenon that we encounter on day to day basis.
In terms of validity, ideas from everyday experiences is not more or less relevant compared to other sources. But the sample group to conduct this type of research tend to be easier to collect compared to other types of researches that needed specific type of subjects.
Answer:
Use the court system
Explanation:
In order to challenge a new law as a citizen you need to use the court system. The citizen in question would need to file a class action lawsuit in court seeking to declare the federal law unconstitutional. This is then reviewed and decided by the courts, where the Supreme Court ultimately has the final verdict on this issue.
Advantage on the left and disadvantage in the right hope this helps :)