fixation

denitrification

nitrification

ammonification

Eutrophication occurs when an aquatic system has an overabundance of nutrients. It is most often caused by human activity like farming, maintaining golf courses and other activities that can lead to fertilizer run off.

Eutrophication occurs when an aquatic system has a lack of nutrients. It is most often caused by human activity like farming, maintaining golf courses and other activities that can lead to fertilizer run off.

Eutrophication occurs when an aquatic system has an overabundance of nutrients. It is most often caused by an excessive amount of bacteria in the soil, performing nitrogen fixation at an increased rate.

Eutrophication occurs when an aquatic system has a lack of nutrients. It is most often caused by an excessive amount of bacteria in the soil, performing nitrogen fixation at an increased rate.

in rocks and sediments (and dead organisms)

in the atmosphere

in the ocean

in living organisms

in the oceans

in the atmosphere

as lakes, rivers, or streams

underground

an aquifer

a watershed

a well

a water table

in rocks and sediments (and dead organisms)

in the atmosphere

in the ocean

in living organisms

The process where plants use energy from the sun to create their own food

The process where plants use energy from the sun to make the ground full of more nutrients

The use of chemical reactions to make photographs

The process of animal respiration

Eutrophication occurs when an aquatic system has an overabundance of nutrients. It is most often caused by human activity like farming, maintaining golf courses and other activities that can lead to fertilizer run off.

Eutrophication occurs when an aquatic system has a lack of nutrients. It is most often caused by human activity like farming, maintaining golf courses and other activities that can lead to fertilizer run off.

Eutrophication occurs when an aquatic system has an overabundance of nutrients. It is most often caused by an excessive amount of bacteria in the soil, performing nitrogen fixation at an increased rate.

Eutrophication occurs when an aquatic system has a lack of nutrients. It is most often caused by an excessive amount of bacteria in the soil, performing nitrogen fixation at an increased rate.

fixation

denitrification

nitrification

ammonification

an aquifer

a watershed

a well

a water table