Biogeochemicals show pls nooo links or i will report how greenhouse gases increase global temperatures

the cycling of essential nutrients through the food web ending with decomposers recycling it into the soil to start again

the toxins moving down the food chain

the phosphorus cycle

C. The nations of the world have finally come to some agreement on why and ... Ecosystems are open systems through which energy flows and materials are cycled ... In detrital food webs it flows mainly from plants through decomposers and detritivores ... In the atmospheric cycles, elements can move in the gaseous phase

Explanation:

MORE POWER

not sure if this what   you'r looking for would be percent composition

d. planting trees

the trees take in carbon to make oxygen.