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Para-jumbles 3 / 100

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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