Which of these best describes a flight that is approaching the speed of sound?
A. More drag is created because the air molecules are not moving
out of the way of the airplane.
B. Subsonic speeds help the engines work more efficiently.
C. Less lift is created because there are fewer air molecules.
O D. There is not enough thrust to propel the airplane past the sound
waves.

Island arcs island arcs are long, curved chains of oceanic islands associated with seismic activity and mountain-building processes at certain plate boundaries. they occur where oceanic tectonic plates collide. along one side of these island arcs, there is usually a long, narrow deep-sea trench. at island arcs, the denser plate is subducted and is forced into the partially molten mantle under the less dense plate. the islands are composed of the extrusive igneous rocks basalt and andesite. the basalt originates most likely from the plastic mantle. the andesite originates most likely from the melting of parts of the descending plate and sediments that had accumulated on its surface. which list identifies minerals present in andesite from the greatest percentage by volume to the least percentage by volume?