What is associated with: at about 1250 miles long its the largest coral reef on earth?

Based on the clue 'at a weddng reception he traditionally proposes th...', what is the answer? Based on the clue 'at about 100 times the mass of the sun the most ma...', what is the answer? What is associated with: at about 1000 square miles twice as big as la it was the largest city state of ancient greece? What is associated with: at about 12000 sq mi strangeray springs a cattle ranch or station in this country is bigger th… What is associated with: at about 14000 feet the highest peak in this mountain chain is moroccos mount toubkal? Based on the clue 'at about 15 this native people constitute new zeal...', what is the answer? What is associated with: at about 1700 square miles this saline lake is one of the largest lakes in the world with no o… What is associated with: at about 17000 mph the worlds fastest winged vehicle is this one when in orbit?