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The Nitrogen and Carbon Cycle

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Jamie Carbon

on 11 October 2013

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Transcript of The Nitrogen and Carbon Cycle

The Nitrogen and Carbon Cycle
Jamie Carbon

What is The Nitrogen Cycle?
The series of processes by which nitrogen and its compounds are converted in the environment and in living organisms by nitrogen fixation and decomposition.
What is The Carbon Cycle?
Human Factors
The Nitrogen Cycle
How is it Used?
The Nitrogen Cycle is used to convert nitrogen into ammonia and nitrites by mineralization and nitrification then turns it into nitrates and ammonium for plant and soil consumption.
Balances the nitrites, nitrates, ammonia and ammonium.
The Carbon Cycle
The carbon cycle is the biogeochemical cycle by which carbon compounds are converted in the environment, where carbon dioxide is involved by carbon moving through the atmosphere and turning into carbon dioxide then is released by respiration and decomposition.
How is it Used?
The carbon cycle is used for plants in Photosynthesis to make simple sugars such as glucose for the pants consumption.
The carbon cycle is used for the release of oxygen by plants taking in the carbon dioxide and releasing oxygen as a by product of photosynthsis so we humans can breath.
Steps of Nitrogen Cycle.
Step 1: Nitrogen fixation
- special bacteria convert nitrogen gas to ammonia which plants can use
Step 2: Nitrification
- ammonia is converted into nitrite ions which the plants can take in as nutrients.
Step 3: Ammonification
- when all the organisms have used the nitrogen, decomposer bacteria ( fungi) convert nitrogen-rich waste into simpler compunds.
Step 4: Dentrification
- Bacteria convert the simple nitrogen compunds into nitrogen gas which is released back into the atmosphere to begin the cycle again.
Steps of Carbon Cycle
Step 1:
Carbon enters the atmosphere as carbon dioxide from respiration and combustion ( burning and breathing)
Step 2:
Carbon dioxide is absorbed by producers to make carbohydrates in photosynthesis. These producers then produce and release oxygen into the atmosphere.
Step 3:
Animals feed on the plants. This passes the carbon compounds along the food chain. Most of the carbon consumed is then exhaled back into the atmosphere as carbon dioxide.
Step 4:
The pants and animal die and decompose.
Step 5:
Dead organisms are then eaten by decomposers in the ground releasing carbon dioxide back into he atmosphere.
Nitrogen Cycle
Carbon Cycle

Significance of Cycles
Plays a key role in trapping heat- causing the increase of greenhouse effect and global warming.
Carbon plays central role in combustion- burning of fossil fuels which increases carbon dioxide in our atmosphere.
Carbon is also used in making up our bodies such as carbohydrates, lipids,nucleic acids, and proteins.
Carbon Cycle
Nitrogen Cycle
Allows organisms to convert ammonia and nitrite into useful forms of nitrate and ammonium . ( plants)
Nitrogen is also used for the make-up of our bodies such as proteins, nucleic acids and lipids.
Allows plants to grow.
Use of nitrogen-containing fertilizers in agriculture causing rates of fertilization often exceeding 1,103 punds of nitrogen per hectare per year. this causes enormously larger rate of nitrogen input than occurs natrually.
The increase of burning of fossil fuels increases effect of global warming.
The increasing amount of greenhouse gases, specifically CO2 captures heat easily which increases the global temperature.
Human beings have been burning fossil fuels like coal and oil for artificial power and deforestation. This constant burning produces massive amounts of carbon dioxide, which are released into Earth's atmosphere causing change in global climate.
Increase in carbon can also cause carbon dioxide toxicity.
The nitrogen cycle is the process by which nitrogen is converted between various chemical forms. This transformation can be carried out through both biological and physical processes. Important processes in the nitrogen cycle include fixation, ammonification, nitrification, and denitrification. The majority of Earth's atmosphere is nitrogen 78%. However, nitrogen is limited for biological use, leading to a scarcity of usable nitrogen. Due to the increase of fossil fuels there has been an increase of nitrogen that is unable to be used.
All living things are made of carbon.
In the atmosphere, carbon is attached to some oxygen molecules in a gas called carbon dioxide.Plants use carbon dioxide and sunlight to make their own food such as sugar/ glucose to grow. The carbon becomes part of the plant. Plants and animals that die and are buried may turn into fossil fuels made of carbon like coal and oil over the years. When humans burn fossil fuels, most of the carbon quickly enters the atmosphere as carbon dioxide. So with an increase of the burn of fossil fuels increase the amount of carbon dioxide and increases the chance of global warming .
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