It seems that you have missed the given options to answer the given question above, but anyway, here is the answer. The one that is not an example of a check or balance put into the U.S constitution would be the unratified constitutional amendments in the United States is not an example. Hope this answer helps.
Answer:
C - the survey respondens tended to be from a homogeneous social background and therefore not representative of the nation as a whole.
Explanation:
If C were true, it would invalidate both the survey and and the conclusion as if the group were homeogenous and only represented one social group (background), the options would not be varied and only indicitive of that group.
Answer:
Cave men usually painted large animals such as bison and deers
Explanation:
These animals were the cave men's primary prey so they depicted their food source on the cave walls.
Answer: a hydrosphere is a sphere of water in which the water cycle operates in a systemic matter so i guess you couold include the way it operates is in a systemic manner.
I'm pretty sure that the Clause approves/helps the President's decision in appointing federal judges of the Supreme Court in the Judicial Branch of the United States government, but I could be wrong on this.