Question

what is the dependent clause in the scentence, since su nam keeps growing taller, she hopes to play basketball at a fitness center with teams for beginners.

Answer 1

Dependent clauses are groups of words with a subject and a verb that don't express a complete thought so they need to be accompanied by another part.

Here the answer is "since su nam keeps growing taller,"

See, by itself it is incomplete, it doesn't make a lot of sense.