Identify the complete adjective clause and the word it modifies.

I elected to take astronomy, which is not a required course.

The complete adjective clause is "which is not a required course." What do you think it modifies?

Astronomy

The complete adjective clause in the sentence is "which is not a required course." This clause modifies the noun "astronomy."

To identify the adjective clause, we can look for a dependent clause that functions as an adjective by modifying a noun or pronoun. In this case, "which is not a required course" modifies "astronomy" by providing additional information about it.

To break it down further:

- "which" is a relative pronoun that introduces the adjective clause.
- "is not a required course" is the main clause within the adjective clause, providing information about the course.

So, in the sentence "I elected to take astronomy, which is not a required course," the adjective clause "which is not a required course" modifies the noun "astronomy."