Answer:
Hard-working, dedicated and ambitious
Step-by-step explanation:
Robert Ballard has won multiple awards and honors, showing how dedicated he his to what he does.
He had always been interested in studying the ocean, because of this, he worked to get a job as a professor of oceanography which shows how hard-working and ambitions he is.
Ballard is know for finding the wreck of the RMS Titanic, his first expedition to find it actual was unsuccessful. Despite this, he kept working to find it, which he eventually did, which shows his dedication and ambition.