In this sentence, "which lasted two hours" is an adjective clause because it describes the school play by telling how long it lasted. Also, adjective clauses often start with words such as "who", "that", "which", or "when", along with others.
Answer:
because it's important for them to have an understanding of most things
Explanation:
which is why we require educators to be not just high school graduates but university graduates as well.
It is a simple sentence because it has one subject and one predicate.
