Nitrogen Cycle 1
Nitrogen cycle 2
Nitrogen cycle 3
Nitrogen cycle 4
100

What is the definition of the word reservoir? 

What is a place where anything is stored

100

What is Biological Fixation? 

Free living bacteria-highly specialized bacteria live in the soil and combine N2 with H2, bacteria fixes 30% if avaiable N2. Produces ammonium (NH4) where most nitrogen fixing happens. 

100

What is lighting?

What is the natural occurrence of electrical discharge. 

100

What are the reservoirs for nitrogen? 

What is Plants, Animals, Bacteria, Atmosphere, and Soil. 

200

What the definition of process? 

What is a series of actions that produce something that lead to a particular result. 
200

What is nitrification? 

What is bacteria in the ground combine ammonia with oxygen to form nitrates (NO2). Another group of nitrifying bacteria coverts nitrites into nitrates (NO3), Green plants absorb nitrates (assimilation) which are eaten by consumers. 
200

What is the Negative consequences of excess Nitrogen?

What is  smog components, nitric oxide, nitrous oxide, acid rain, and allows non-native plants into an ecosystem. 


200

What are the forms of nitrogen found in the Nitrogen cycle? 

What is Nitrogen compounds, Nitrogen must be converted to more chemically available forms for plants and animals to use. 

300

What is Nitrogen Fixation? 

What is a process where N2 molecules in the air break apart and combine with other atoms to form ammonium or NH2. Nitrogen gets fixed when it combines with Oxygen to Hydrogen. 

300

What is assimilation?

What is organic compounds-amino acids, cholrophyll, nucleic acid. produced when plants take up NH4, organisms near the top of the food chain eat plants taking up biological fixed nitrogen. 
300

What is human impact? 

What is cause use of synthetic (man made) nitrogen fertilizers. Effect Fixes more nitrogen than all natural sources combined.  

300

What is Nitrogen?

What is makes up about 78% of the atmosphere, Nitrogen gas is colorless, odorless, and generally intent or unreeactive. Most organisms can´t use vital components of food, fertilizers, and explosives. 

400

What is the definition of Atmospheric Fixation? 

What is Energy from lighting breaks N2 molecules apart, N2 atoms combine with oxygen forming nitrogen oxides. N2O dissolves in rain forming Nitrates NO3. Nitrates get carried to the ground by Rain. 

400

What is ammonification? 

What is part of the decay process. When a plant dies or leaves waste products, decoomposers like fungi sf bacteria turn N2 back into ammonia, ammonia is absorbed and stored in the soil. 

400

What is the nitrogen cycle?

What is, Describes how nitrogen N2 moves between various reservoirs. 

400

What are the processes of the Nitrogen Cycle? 

What is Fixation, Assimilation, Ammonification, Denitrification. 

500

What is the definition of Industrial Fixation?

What is under certain conditions industrial plants combine with nitrogen and Hydrogen forming NH3.  Ammonia is used has fertilizer. 

500

What is bacteria?

What is small organisms found all over Earth

500

What can Nitrogen be used for? 

What is food, fertilizers, and Explosives

500

What is Denitrification? 

Converts nitrates NO3 in the soil to N2 sediments. Denirifying bacteria that live deep swampy sediments where O2 is not easily accessible. These bacteria take O2 from nitrates leaving the byproducts nitrogen gas N2.