Answer:
Plants lacking flowers but producing cones or strobili are called gymnosperms. The word "gymnosperm" translates to mean "naked seed." Gymnosperm seeds do not develop inside an ovary, as in the case of flowering plants. Botanists don't regard ferns, which reproduce with spores, as gymnosperms:)
The upheaval was caused by widespread discontent with the French monarchy and the poor economic policies of King Louis XVI, who met his death by guillotine, as did his wife Marie Antoinette.
Causes of plate motion
Mantle convection currents, ridge push and slab pull are three of the forces that have been proposed as the main drivers of plate movement (based on What drives the plates? Pete Loader). There are a number of competing theories that attempt to explain what drives the movement of tectonic plates.
Answer:
I would think it would be the third answer but don't count on that