Final answer:
A complex sentence is a sentence that contains an independent clause and at least one dependent clause. It adds complexity and variety to writing by expressing multiple ideas and their relationships.
Step-by-step explanation:
A complex sentence is a sentence that contains an independent clause and at least one dependent clause. An independent clause can stand alone as a sentence, while a dependent clause cannot. A dependent clause relies on the independent clause for meaning and cannot function as a complete sentence on its own.
For example: "Although it was raining, she went for a walk." In this sentence, 'Although it was raining' is the dependent clause, and 'she went for a walk' is the independent clause. The independent clause can stand alone as a complete sentence, but the dependent clause cannot.
Complex sentences are used to add complexity and variety to writing, allowing for the expression of multiple ideas and relationships between them.
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