Final answer:
The sentence in question is a complex sentence, containing one independent clause and one dependent clause connected by a subordinating conjunction.
Step-by-step explanation:
The sentence, 'Although he was wealthy, he was still unhealthy' is indeed a complex sentence. A complex sentence contains one independent clause and one or more dependent clauses. In this sentence, 'he was still unhealthy' is the independent clause, which can stand alone as a complete sentence. 'Although he was wealthy' is the dependent clause, which cannot stand alone and is connected to the main sentence by a subordinating conjunction 'Although'.
The complex sentence structure enables the expression of more nuanced ideas by connecting multiple clauses. Furthermore, such sentences often reflect the relationship between those clauses, such as contrast, cause, or condition.
In the provided sentence, the word 'Although' indicates a contrast between the two clauses, expressing the fact that even though the subject was rich (an assumption usually associated with a good life), he was not healthy. Therefore, the sentence effectively uses the complex sentence structure to convey a more sophisticated idea containing contrasting elements.
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