Based on the clue 'at 17 people per square kilometer this central asi...', what is the answer?

What is associated with: at 16800 feet vinson massif is the highest point on this continent? What is associated with: at 16945 feet its the highest point in turkey? Based on the clue 'at 17 he composed an overture for a midsummer nigh...', what is the answer? Based on the clue 'at 17 i was cruisin the blvd in my 57 chevy while ...', what is the answer? Based on the clue 'at 17 this ex mousketeer sang reflection on the so...', what is the answer? Based on the clue 'at 17 this little women author wrote her first nov...', what is the answer? What is associated with: at 17 this russian was an enfant terrible in 1929 he composed the ballet lenfant prodigue? Based on the clue 'at 18 feet in height this tallest mammal could eas...', what is the answer?