Given below are four jumbled sentences. Select the option that gives their correct logical sequence.
A. These can turn around to track stars with the rotation of Earth.
B. Observatories are places to study space.
C. They are mostly built on the mountain tops.
D. Telescopes are placed on the dome-shaped roof of the building.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. BCDA.
Logical flow:
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B introduces the main topic: what observatories are.
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C gives information about where they are located.
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D explains what is placed in them.
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A describes the functionality of those instruments.
Correct sequence: B → C → D → A
Final Passage:
Observatories are places to study space. They are mostly built on the mountain tops. Telescopes are placed on the dome-shaped roof of the building. These can turn around to track stars with the rotation of Earth.
Hence, the chosen option will be correct.