The force that moves sediment in a landslide or mudflow is

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp

Someone do this for me. im really stuck