Achemical reaction in which one element replaces another element in a compound can be categorized as acombustion reaction. decomposition reaction. single displacement reaction. double displacement reaction.

Compare and contrast physical changes with chemical changes.

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

In apex! a liquid heated beyond a certain temperature becomes