Lucy practices jai alai four hours a day. is this a simple sentence, a compound sentence, a sentence fragment, or a run-on sentence?

Mr. culpepper has disdain for his students and does not respect them. mr. culpepper is trying to create a supportive environment for his students. mr. culpepper does not know his students and does not try to know them. mr. culpepper wants to his students but does not know how to do it.

1) earth's crust is made up of relatively rigid plates that ride atop earth's hot, semiliquid mantle. (2) the plates are called tectonic because they're in constant motion. (3) they can move because earth's mantle is a very hot and semiliquid fluid called magma. (4) volcanoes are a result of magma rising up or erupting through a plate, particularly where plate boundaries are moving against each other. (5) also, when plates slide against each other, causing friction along adjacent plate boundaries, earthquakes frequently occur. (6) therefore, we often find volcanoes and earthquakes along plate boundaries. (7) plates may also collide. (8) when that happens, mountain ranges are formed. (9) for example, the collision of the plate carrying the indian subcontinent created the himalayan mountains when it collided with the asian plate. which statement about this paragraph is accurate?

Insert comma today we went to the store to the post office and to the park