What are the characteristics of ionosphere?​

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

Anyone who's in connections academy chemistry b have the factors that affect the rate of a reaction portfolio already done?

What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays