It’s a phrase because it doesn’t have a subject
Answer: The capital of America is Washington D.C.
Explanation:
I do not know the answer to this question
Two sentences joined with a coordinating conjunction and a comma form a compound sentence. If it were a complex, it would have a dash. If it were a comma splice, it would have a dash and a dash. If it were a run-on, it wouldn't have either, just a lot of and in it.
Hope this helps. :D
Shrink or shrunk this is simply because it is one of the better synonyms also knowing that dwindling means shrink makes you smart :P