Final answer:
Navy personnel can advance to Petty Officer by developing their skills and experience, passing required exams, and meeting service conditions. Opportunities for advancement include starting without a trade and learning on the job, or entering with a trade and earning higher wages. ROTC programs offer additional educational pathways to officer commissions.
Step-by-step explanation:
Advancement to Petty Officer in the Navy is made through demonstrating a combination of skill, experience, taking necessary examinations, and meeting service requirements. In the Navy, there are opportunities to see the world, save money, learn a trade, and serve the country. Individuals without a trade can start earning and learning, and as they advance, they may take on more responsibilities and eventually qualify for promotion to Petty Officer. Service members with a trade can earn more, and there are opportunities for even higher pay and responsibilities. Education programs such as the ROTC also provide a pathway to becoming an officer, where one can earn a commission in addition to a degree.