The biggest difference between the flow of energy and the flow of chemical nutrients in an ecosystem is that answer unselected energy is recycled, but nutrients are not unselected organisms always need energy, but they don’t always need nutrients unselected organisms always need nutrients, but they don’t always need energy unselected the amount of energy is much greater than the amount of nutrients unselected nutrients are recycled, but energy is not

nutrients are recycled, but energy is not

Explanation:

In the flow of energy, the sun represents the maximum source of energy and this energy is converted into other forms, a transformation process where energy is not recycled but transformed into other forms. Already the flow of nutrients in an ecosystem occurs through biochemical cycles, where nutrients are used and recycled to be reused.

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds