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Conventional deposits of oil and gas are actually the final resting place of far-traveled hydrocarbons that were (i)_____ deeper source beds of organic-rich rock. By contrast, shale gas (ii)_____ its birthplace, remaining in the source bed whose organic matter produced the gas.
If the product of 7 consecutive integers is equal to the median of the integers, what is the least of the 7 integers?

If n is a positive odd integer and $$k=n^{3}+2n$$, what is the value of $$ (-1)^{k}-(-1)^{k+1}$$?
The passage is primarily concerned with
Which of the following does the passage cite as an explanation for historians` traditional analysis of the Japanese textile industry?
The passage is concerned primarily with
The primary purpose of the passage is to
The author the passage mentions the work of Hrdy primarily to
The information given, if accurate, most strongly supports which of the following hypotheses?
The author of the passage mentions black holes in order to provide
Which of the following best describes the organization of the second paragraph?
For literary critics and book reviewers, the notion of critical authority has become ______in an age of quick, teeming Internet response, where all the old critical standards and parameters are in the process of being reinvented.
In years prior to the Civil War, Philadelphia`s African American press encouraged readers to be vaccinated against the smallpox. This journalistic campaign was initially (i)________, appealing to readers` sense of communal duty, and became even more (ii)________ once the war started, as smallpox outbreaks began to occur on Philadelphia`s city skirts.
The primary purpose of the passage is to

If the information provided is true, which of the following is most strongly supported on the basis of it?
Which of the following best describes the function of the highlighted sentence?
Why does the author note that people "make inconsistent choices"?
Which of the following general criticisms of dialect poetry is mentioned in the passage?
Select the sentence in which the author articulates the benefits of a tendentious research approach.
Which of the following is an assumption on which the argument depends?

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