Which of the given options is the most logical sequencing of the following sentences to form a meaningful paragraph?
1. They are formed by tiny animals called coral polyps.
2. Coral reefs are home to many marine species.
3. This is caused by rising ocean temperatures and pollution.
4. Corals are losing their wonderful colours due to coral bleaching.
Show answer & explanation
Correct answer: B
Explanation
Logical Sequence:
Sentence 2 (The Introduction): "Coral reefs are home to many marine species." This sentence introduces the main subject—coral reefs—and their importance to the ecosystem.
Sentence 1 (The Explanation): "They are formed by tiny animals called coral polyps." The pronoun "They" refers back to "Coral reefs" in sentence 2, explaining how they are created.
Sentence 4 (The Problem): "Corals are losing their wonderful colours due to coral bleaching." This introduces a threat or problem currently facing the reefs mentioned in the previous sentences.
Sentence 3 (The Cause): "This is caused by rising ocean temperatures and pollution." The pronoun "This" refers to the "coral bleaching" mentioned in sentence 4, providing the underlying reason for the problem.
The most logical sequencing for the given sentences to form a meaningful paragraph is 2-1-4-3.