France, Germany, United Kingdom
Explanation:
Contamination can have undesirable consequences in real experiments, some of them are related to the feelings that may arise in the research participants, the contamination bias reduces the differences between the research groups, and can cause a comparison between the treatments of each different group, the which can generate conflicts and rivalries on the part of groups that consider themselves to be inferior to others. These contamination-related problems can significantly interfere with the research results.
The Federal government would be too weak to do enforce its laws
Answer:
I personally think that passing a constitutional amendment is hard, yet possible. And it should change to reflect ideas of society and the general public.
Explanation:
The amendment has to be approved by 2/3 of Congress and 3/4 of the State, which can be extremely hard to gain approval of. Therefore that is why I believe that it should change.
The correct answer is: "receiving money for the remission of sins".
The Catholic Church used to sell indulgences. Extremely poor people spent all the money they could have saved to buy these products, because they were told in church (and therefore they believed so) that they would be forggiven for their sins and heaven would await for them after the purchase.
Martin Luther criticized the existence of this lucrative activity connected to the power of removing sins, which according to his beliefs was only held by Gold. Therefore, the members of the clergy were deceiving their congregations just to earn money for themselves.
