How many total atoms are in the following compound: Ca(CO3)2H2

Write a paragraph at least 10 sentences explaining how rocks are used today in society

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

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