What determines the speed at which a particle of matter moves

Subduction zones occur on earth where dense oceanic crust dives under more buoyant continental crust. these boundaries are characterized by a deep ocean trench next to a high continental mountain range, large numbers of earthquakes and volcanoes. all of this is further evidence for the a) big bang theory b) origin of the species eliminate c theory of plate tectonics d theory of natural selection 4 sedimentary rocks found high in the himalayen mountain

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles