The web site of the Nobel Prize explains that readers who want to inspect the Curies’ notebooks must sign a paper that states that they are aware of the health risks that are involved with handling the notebooks. What health risk is most likely to occur from handling the notebooks? excessive coughing
anemia
muscle cramping
swelling of the joints

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