what is the one way that the phosphorus cycle differs from the carbon and nitrogen cycle?

Answer 1

One way is that the "storage bank" of phosphorus is not the atmosphere. Carbon and nitrogen both enter the food chain from the atmosphere (though nitrogen has to be fixed first). Phosphorus is in the rocks of the Earth, is weathered and eroded, taken up by plants, passes through the food chain, is deposited in the waterways, and is compressed over thousands of years into rock again.

Answer 2

It differs because it doesnt go into the atmosphere like the other cycles.