How does returning leaked fluid from the blood maintain homeostasis

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

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table