Reading Practice Test #U2013 6 (Reading Comprehension)

The question asks how the questions at the end of the last paragraph affect the passage. Although the passage introduces a number of theories about the Tunguska explosion, no definitive explanation has been reached. This idea is stated in Option D. Option A is incorrect because, although the passage does not discourage further study, it does not specifically promote it. Option B is incorrect because, although the author presents multiple possible causes, the passage suggests that the damage was most likely caused by one of these possibilities rather than several of them simultaneously. The author is certainly curious about the actual cause of the Tunguska explosion but objectively presents the questions about it that remain unanswered, making Option C incorrect The question asks for evidence that best supports a detail in the passage. When scientists were able to travel to the site almost two decades after the blast, they found a circle of “scorched and downed trees” that marked the blast site (paragraph 2), making Option D the correct answer. Option A is incorrect because, although the scientists searched for a crater, they never found one (paragraph 2). Option B is also incorrect because the tremors recorded at a seismic station thousands of miles away detailed the magnitude of the event, not the location (paragraph 1). Option C is incorrect because, although huts were flattened when the blast occurred, the destruction of the huts was not evident when the site was found almost two decades later (paragraph 1) See solution for the supported answer It confirms Margaret’s understanding that she cannot rely on help from anyone else. (B) It leads Margaret to realize that her efforts to change her situation are ineffective. (C) It causes Margaret to believe that her own actions led to an unfavorable outcome. (D) It reinforces Margaret’s frustration about her lack of control over her surroundings.