Observation when hydrogen burns in the air

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 process describes vaporization that takes place below the surface of a liquid? condensation melting boiling evaporation

List and describe the neurological effects of the vocs and other air pollutants,as described by dr.theo colborn