The Phosphorus Cycle

This is NOT a part of the phosphorus cycle.

All living organisms are mainly composed of what elements?

_____ brings phosphorous into our waterways. .

Living organisms are mostly composed of Carbon.

Macronutrients are elements organisms need in relatively small amounts

Trace elements are needed by organisms in relatively large amounts.

This is released by the weathering of rocks.

Too much phosphorus in waterways (rivers, lakes) can lead to___________.

Organisms that break down dead plants & animals and release nitrogen back into atmosphere...

What is the phosphorus' symbol on the periodic table?

This is NOT a part of the phosphorus cycle.

The major sink for phosphorus is

In order to make a complete cycle for phosphorus, you need to make new rocks through heat, time, and pressure.

What things add phosphorus to the soil? Check all that apply.