During the process of photosynthesis, algae produce a small amount of hydrogen gas. Recently, microbiologists funded by the Department of Energy figured out how to create mutant versions of algae that generate much more hydrogen. You are probably wondering why the Department of Energy is funding this research. The answer is that the hydrogen produced by algae could one day be used to provide energy to entire cities
What assumption does the author of the passage make?
- A. Gases produced by algae will be cheaper to produce than other gases.
- B. The Department of Energy is already using hydrogen-producing algae as a source of energy.
- C. Mutant versions of algae will not be capable of the process of photosynthesis.
- D. Readers do not associate the Department of Energy with algae research.
Correct Answer & Rationale
Correct Answer: D
The assumption that readers do not associate the Department of Energy with algae research is supported by the passage's context, which aims to highlight the potential of algae in energy production. This suggests a need to clarify the Department's involvement. Option A is incorrect as the passage does not provide a comparison of costs related to gas production. Option B is misleading; the passage does not confirm the Department's current use of hydrogen-producing algae. Option C is not supported; the passage does not address the capabilities of mutant algae in photosynthesis. Thus, option D aligns with the author's intent to bridge a knowledge gap.
The assumption that readers do not associate the Department of Energy with algae research is supported by the passage's context, which aims to highlight the potential of algae in energy production. This suggests a need to clarify the Department's involvement. Option A is incorrect as the passage does not provide a comparison of costs related to gas production. Option B is misleading; the passage does not confirm the Department's current use of hydrogen-producing algae. Option C is not supported; the passage does not address the capabilities of mutant algae in photosynthesis. Thus, option D aligns with the author's intent to bridge a knowledge gap.
Other Related Questions
Which choice best describes the overall structure of the passage?
- A. The passage examines the effect of decreased environmental awareness on some animals' predation risk and then describes the strategies those animals use to increase their environmental awareness while sleeping.
- B. The passage distinguishes between bihemispheric slow-wave sleep (BSWS) and unihemispheric slow-wave sleep (USWS) and then explains why USWS is less beneficial than BSWS for animals such as mallards and penguins.
- C. The passage discusses the advantages for some animals of sleeping at the center of a group and then questions whether those advantages extend to colonial birds.
- D. The passage provides an extended description of how mallards typically sleep and then compares sleeping behaviors in mallards to those in penguins.
Correct Answer & Rationale
Correct Answer: C
Choice C accurately captures the passage's structure, which begins by exploring the benefits of group sleeping for certain animals and then raises a critical inquiry regarding the applicability of these benefits to colonial birds. This dual focus on advantages and questioning reflects a balanced examination of the topic. Option A misrepresents the content by suggesting a focus on predation risk and strategies for environmental awareness, which is not the main theme. Option B incorrectly centers on a comparison of sleep types, neglecting the broader discussion of group sleeping benefits. Option D inaccurately emphasizes a detailed comparison of mallards and penguins, rather than the initial exploration of group sleeping advantages.
Choice C accurately captures the passage's structure, which begins by exploring the benefits of group sleeping for certain animals and then raises a critical inquiry regarding the applicability of these benefits to colonial birds. This dual focus on advantages and questioning reflects a balanced examination of the topic. Option A misrepresents the content by suggesting a focus on predation risk and strategies for environmental awareness, which is not the main theme. Option B incorrectly centers on a comparison of sleep types, neglecting the broader discussion of group sleeping benefits. Option D inaccurately emphasizes a detailed comparison of mallards and penguins, rather than the initial exploration of group sleeping advantages.
The author of Passage 1 uses the phrase 'That's right' in order to:
- A. acknowledge that a claim may be surprising
- B. confirm that a prediction was accurate
- C. concede that a criticism has merit
- D. emphasize that a debate has been settled
Correct Answer & Rationale
Correct Answer: A
The phrase "That's right" is used to acknowledge a statement or claim, often indicating that it may be unexpected or surprising to the audience. This aligns with option A, as it highlights an awareness of the potential shock value of the claim. Option B is incorrect because confirming a prediction implies certainty and agreement with a prior statement, which is not the intent of the phrase. Option C misinterprets the phrase's meaning; conceding a criticism suggests acceptance of fault, which does not fit the context. Option D also misses the mark, as emphasizing a settled debate would imply finality, whereas "That's right" suggests an ongoing dialogue rather than closure.
The phrase "That's right" is used to acknowledge a statement or claim, often indicating that it may be unexpected or surprising to the audience. This aligns with option A, as it highlights an awareness of the potential shock value of the claim. Option B is incorrect because confirming a prediction implies certainty and agreement with a prior statement, which is not the intent of the phrase. Option C misinterprets the phrase's meaning; conceding a criticism suggests acceptance of fault, which does not fit the context. Option D also misses the mark, as emphasizing a settled debate would imply finality, whereas "That's right" suggests an ongoing dialogue rather than closure.
In sentence 13, the narrator most likely uses the image of 'a tightly woven fruit basket' to suggest that the rain is:
- A. a physical challenge that must be endured
- B. falling so heavily that she can barely see through it
- C. a reminder of the weather in harvest season
- D. important because it allows crops to survive
Correct Answer & Rationale
Correct Answer: A
The image of "a tightly woven fruit basket" conveys the idea of resilience and endurance, suggesting that the rain is a challenge that must be faced. This metaphor implies that just like a tightly woven basket holds its contents together despite external pressures, the narrator must endure the rain's intensity. Option B misinterprets the imagery; while heavy rain can obscure vision, the metaphor focuses more on endurance than visibility. Option C incorrectly links the rain to harvest season, which is not implied in the context. Option D, while true about rain's importance for crops, does not capture the struggle suggested by the basket imagery.
The image of "a tightly woven fruit basket" conveys the idea of resilience and endurance, suggesting that the rain is a challenge that must be faced. This metaphor implies that just like a tightly woven basket holds its contents together despite external pressures, the narrator must endure the rain's intensity. Option B misinterprets the imagery; while heavy rain can obscure vision, the metaphor focuses more on endurance than visibility. Option C incorrectly links the rain to harvest season, which is not implied in the context. Option D, while true about rain's importance for crops, does not capture the struggle suggested by the basket imagery.
The narrator primarily portrays the woman she is observing as someone who is:
- A. modest and self-effacing
- B. imposing and dignified
- C. youthful and energetic
- D. angry and impatient
Correct Answer & Rationale
Correct Answer: B
The portrayal of the woman emphasizes her imposing and dignified presence, suggesting strength and confidence. This is evident through her posture and the way she commands attention in her environment. Option A, modest and self-effacing, contradicts the strong impression she leaves, as she does not appear to shy away from the spotlight. Option C, youthful and energetic, overlooks the woman's gravitas and maturity, focusing instead on a fleeting quality. Option D, angry and impatient, misrepresents her demeanor, which is more composed and authoritative than reactive. Thus, the emphasis on dignity and presence aligns best with the narrator's observations.
The portrayal of the woman emphasizes her imposing and dignified presence, suggesting strength and confidence. This is evident through her posture and the way she commands attention in her environment. Option A, modest and self-effacing, contradicts the strong impression she leaves, as she does not appear to shy away from the spotlight. Option C, youthful and energetic, overlooks the woman's gravitas and maturity, focusing instead on a fleeting quality. Option D, angry and impatient, misrepresents her demeanor, which is more composed and authoritative than reactive. Thus, the emphasis on dignity and presence aligns best with the narrator's observations.