Toppercracker
♫
Now Playing
Ambient Radio
♫

Keep Learning?

Sign in to continue practicing.

Para-jumbles 23 / 100

a. Its presence is inferred solely through its gravitational effects on visible matter, such as the rotation curves of galaxies and the gravitational lensing of distant objects.
b. Scientists hypothesize that dark matter comprises approximately 27% of the universe's mass-energy budget, significantly outweighing ordinary baryonic matter.
c. Despite decades of research, direct detection experiments for Weakly Interacting Massive Particles (WIMPs), a leading candidate for dark matter, have yet to yield conclusive evidence.
d. One of the most profound mysteries in modern cosmology is the existence of dark matter, an enigmatic substance that does not interact with light or other electromagnetic radiation.

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

1. d, a, b, c

2. a, d, c, b

3. d, b, a, c

4. b, a, c, d

Correct Answer: 1 (d, a, b, c)
To solve "Sentence Rearrangement" or "Para-jumble" tasks, look for the logical flow of ideas:
Step 1 (Introduction): Sentence (d) serves as the best introductory sentence. It defines dark matter as a primary mystery in cosmology and describes its fundamental non-interacting nature, setting the stage for further discussion.
Step 2 (Elaboration): Sentence (a) logically follows (d). After defining dark matter, it explains how its existence is known or "inferred" despite its non-interacting nature, providing specific examples like gravitational effects. The phrase "Its presence" directly refers back to dark matter introduced in (d).
Step 3 (Secondary Factor): Sentence (b) builds upon the inferred existence by providing a quantitative measure of dark matter's hypothesized abundance in the universe's mass-energy budget. This elaborates on its cosmic significance.
Step 4 (Conclusion/Result): Sentence (c) provides a concluding remark on the current state of research. It highlights the ongoing challenge of direct detection, despite its significant hypothesized role, bringing the paragraph to a current, unresolved point.

← →