Ameasure of kinetic energy of particle motion within a substance

An experimental procedure requires a 10 ml of acid to be dissolved

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

Stage in which a star’s outer layers have started to cool and grow outward?