An airplane los from radar at 5 degrees S and 55 degrees W was over which continent?

Antarctic

Explanation:

Air New Zealand had been operating scheduled Antarctic sightseeing flights between 1977 and 1979. This flight was supposed to leave Auckland Airport in the morning and spend a few hours flying over the Antarctic continent, before returning to Auckland in the evening via Christchurch.

on a flat and narrow coastal plain, between the foothills of the brazilian highlands and the atlantic ocean, on the shore of guanabara bay, in the state of rio de janeiro, brazil, the tropical zone in south america.