The main source of energy for a hurricane is the: a. upper-level jet stream. b. rising of warm air and sinking of cold air in the vicinity of weather fronts. c. warm ocean water and release of latent heat of condensation. d. ocean currents and tides

What must happen for new french words to be published in official dictionaries? a. they must be approved by the french academy b. they must be voted on by the people of france c. they must be used by famous french writers d. they must be used by philosophers a. they must be approved by the french academy