Carbon, Nitrogen, Phosphorus
a process by which carbon is cycled between the atmosphere, land, water, and organisms.
it's important because we burn fossil fuels and release them into the atmosphere.
a process in which nitrogen is cycled between the atmosphere, bacteria, and other organisms.
is it improtant because bacteria takes nitrogen gas from the air and transforms it into molecules that living things can use.
is the movement of phosphorus from the environment to organisms and then back to the environment.
it's important because phosphorus may enter soil and water in a few ways. When rocks erode, small amounts of phosphorus dissolves as phosphate in soil and water.