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Para-jumbles
a. Dark matter, specifically, is inferred from its gravitational effects on visible matter, preventing galaxies from flying apart and influencing large-scale cosmic structures. b. Despite comprising roughly 95% of the universe's mass-energy content, dark matter and dark energy remain among the most profound enigmas in modern cosmology. c. Unraveling the true nature of these elusive components is a primary goal for physicists, potentially reshaping our fundamental understanding of the cosmos. d. Conversely, dark energy is posited as the mysterious force driving the accelerated expansion of the universe, a phenomenon first observed in the late 1990s. These sentences, when properly sequenced, form a coherent paragraph. Which of the options best outline their correct order? 1. b, a, d, c 2. a, b, d, c 3. b, d, a, c 4. d, a, b, c
Correct Answer: 1 (b, a, d, c) To solve "Sentence Rearrangement" or "Para-jumble" tasks, look for the logical flow of ideas: Step 1 (Introduction): Sentence (b) serves as the best introductory sentence. It presents the overarching topic – the enigmatic nature of dark matter and dark energy – and establishes their significance (comprising 95% of the universe). Step 2 (Elaboration): Sentence (a) logically follows (b) by detailing the first of the two components mentioned: dark matter. It explains how dark matter is inferred and its primary gravitational role. Step 3 (Secondary Factor): Sentence (d) is the natural successor to (a). The transition word "Conversely" signals a shift to the second component, dark energy, explaining its role in the universe's accelerated expansion and contrasting it with dark matter. Step 4 (Conclusion/Result): Sentence (c) provides a concluding thought, emphasizing the ongoing scientific endeavor to understand these components and the potential impact on our cosmic understanding, summarizing the broader implications of the preceding sentences.
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