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Para-jumbles 1 / 100

a. This elusive substance is now understood to constitute roughly 27% of the universe's total mass-energy density, playing a crucial role in the formation and structure of galaxies and large-scale cosmic webs.
b. The existence of dark matter was first inferred from discrepancies between the gravitational mass of galaxy clusters and the visible matter they contained, leading to the hypothesis of an unseen mass component.
c. Despite numerous sophisticated experiments designed to detect Weakly Interacting Massive Particles (WIMPs) or other theoretical candidates, no definitive direct evidence of dark matter has yet been found, deepening the cosmic mystery.
d. Unlike ordinary baryonic matter, dark matter does not interact with electromagnetic radiation, rendering it invisible to telescopes across the entire spectrum and making its direct detection extraordinarily challenging.

These sentences, when properly sequenced, form a coherent paragraph. Which of the options best outline their correct order?

1. b, a, d, c

2. b, d, a, c

3. a, b, d, c

4. d, b, a, 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 statement. It sets the context by explaining how the concept of dark matter initially arose from observational anomalies and introduces the hypothesis of an "unseen mass component."
Step 2 (Elaboration): Sentence (a) naturally follows (b). The phrase "This elusive substance" in (a) directly refers back to the "unseen mass component" mentioned in (b), and then elaborates on its cosmic significance and estimated proportion.
Step 3 (Secondary Factor): Sentence (d) logically continues from (a) by explaining *why* this substance is elusive and challenging to detect. It details the fundamental nature of dark matter's non-interaction with electromagnetic radiation, which builds upon the idea of it being "unseen."
Step 4 (Conclusion/Result): Sentence (c) provides the current status of the search for dark matter, concluding the paragraph by highlighting the ongoing scientific challenge. It directly follows (d) by detailing the lack of success in detecting it despite its invisibility and non-interaction.

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