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The #1 way nitr

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the final step

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One way is Nitrogen enters the atmosphere is when the plants an animals die the bacteria release nitrogen into the atmosphere

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It is when the plants and animals die and use the bathroom.

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One way i think it enters the atmosphere  is when plants and animals

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One way nitrogen enters the atmosphere is when plants and animals die and bacteria releases nitrogen into the atmosphere

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i think nitrogen enters the atmosphere by dead organisms

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One way is Nitrogen is important to all life Nitrogen in the atoms

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Nitrogen is important to all life. Nitrogen in the atmosphere or in the soil can go through many complex chemical and biological changes, be combined into living and non-living material, and return back to the soil or air in a continuing cycle. This is called the nitrogen cycle.

Figure 1
Oversimplifying, the nitrogen cycle works this way.

A basic look at the nitrogen cycle

Plants need nitrogen to grow, develop and produce seed. The main source of nitrogen in soils is from organic matter. Soils in Missouri commonly contain one to four percent organic matter. Organic matter largely arises from plant and animal residues. The nitrogen in organic matter is largely in organic forms that plants cannot use. Bacteria found in soils convert organic forms of nitrogen to inorganic forms that the plant can use. Nitrogen is taken up by plant roots and combined into organic substances in the plant, such as enzymes, proteins and chlorophyll. Chlorophyll gives the plant its green color. When the plant dies, it decays and becomes part of the organic matter pool in the soil. The basic nitrogen cycle is illustrated in Figure 1. It shows nitrogen changing from organic matter in the soil, to bacteria, to plants and back to organic matter.

Plant and animal wastes decompose, adding nitrogen to the soil.

Bacteria in the soil convert those forms of nitrogen into forms plants can use.

Plants use the nitrogen in the soil to grow.

People and animals eat the plants; then animal and plant residues return nitrogen to the soil again, completing the cycle.

Another way nitrogen enters the cycle is as inorganic nitrogen from the atmosphere and factories. The concern with these forms is that the incremental amount of nitrates they add to the nitrogen cycle may threaten groundwater.

Rain storms contribute atmospheric nitrogen through rain drops that reach the soil.

Legumes, such as soybeans, alfalfa and clovers, are plants that can convert atmospheric nitrogen into plant-usable nitrogen.

Factories that produce nitrogen fertilizers add nitrogen to the soil when farmers and gardeners "feed" their crops.

Nitrogen in sewage sludge from municipal waste plants can be used to fertilize farm fields.

Ways nitrogen is lost to the cycle

For the most part, the nitrogen cycle is soil based. Nitrogen is lost from the cycle in four ways:

Denitrification
Bacteria change nitrate in the soil to atmospheric nitrogen, which joins the atmosphere.

Volatilization
Turns urea fertilizers and manures on the soil surface into gases that also join the atmosphere.

Together, these first two processes account for most of the nitrogen lost to the cycle — a concern for soil fertility.

Runoff
Carries the nitrogen in fertilizers and manure and the nitrogen in the soil into our rivers and streams — a concern for water quality.

Leaching
Carries nitrates soo deep into the soil that plants can no longer use them, producing a dual concern — for lost fertility and for water quality, as nitrates enter the groundwater and the wells that provide our drinking water.

More about the nitrogen cycle

The largest single source of nitrogen is the atmosphere. It is made up of 78 percent of this colorless, odorless, nontoxic gas. However, plants are unable to use nitrogen as it exists in the atmosphere. Nitrogen from the air (N2) enters the nitrogen cycle through several unique types of microorganisms that can convert N2 gas to inorganic forms usable by plants. Some of these microorganisms live in the soil, while others live in nodules of roots of certain plants.

Nitrogen also can enter the cycle from other sources besides the air, manure and decaying plant materials. Nitrogen also can enter the cycle from the application of commercial nitrogen fertilizers.

Nitrogen can be lost from the cycle. It can be lost to the atmosphere, removed by harvesting crops or lost to surface water or groundwater. However it is lost, nitrogen can enter the cycle again through one of the processes discussed above or through other processes. These additional pathways of gains and losses to the nitrogen cycle are illustrated in Figure 2.

Figure 2
A more comprehensive look at the nitrogen cycle.

Impact on water quality

Nitrogen becomes a concern to water quality when nitrogen in the soil is converted to the nitrate (NO3-) form. It is a concern because nitrate is very mobile and easily moves with water in the soil. The concern of nitrates and water quality is generally directed at groundwater. However, nitrates can also enter surface waters such as ponds, streams and rivers. The presence of nitrates in the soil are largely the result of natural biological processes associated with the decomposition of plant residues and organic matter. Nitrates can also come from rainfall, animal manure and nitrogen fertilizers.

Whether or not nitrates actually enter groundwater depends on underlying soil and/or bedrock conditions, as well as the depth to groundwater. If depth to groundwater is shallow and the underlying soil is sandy, the potential for nitrates to enter groundwater is relatively high. However, if depth to groundwater is deep and the underlying soil is heavy clay, groundwater contamination from nitrates is not likely.

Once nitrates get into the groundwater, the greatest concerns are for infants less than one year old and for young or pregnant animals. High levels of nitrates can be toxic to newborns, causing anoxia, or internal suffocation. Seek alternative water sources if nitrate levels exceed the health standard of 10 ppm nitrate-N. Do not boil water to eliminate nitrates. It increases nitrate levels rather than decreasing them. The most common symptom of nitrate poisoning in babies is a bluish color to the skin, particularly around the baby's eyes and mouth. These symptoms of nitrate toxicity are commonly referred to as the "blue-baby" syndrome.

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Two ways  the nitrogen enters the atmosphere is by when plants or  animals. And when fungi enters the earth

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one way i think nitrogen enters the atmosphere in when dead plants and animals died and are decomposed another way is when the bacteria in tree or plants turn amonia in to nitrates

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Two ways nitrogen can enter atmosphere is by plants and animals. 

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Two ways nitrogen can enter atmosphere is by plants and animals. 

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Demitri Lumpkin

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One of the ways nitrogen can enter the atmosphere I by air.This is because the air that is entered is called armonia sense the inside of our earth is our atmosphere. And through bacteria and form nitries in our atmosphere.

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One way I think nitrogen enters the atmosphere  is by the gas and another way it enters the atmosphere is by plants and animals

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One way I think nitrogen enters the atmosphere  is by the gas and another way it enters the atmosphere is by plants and animals

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ONE WAY I THINK THE NITROGEN ENTERS THE ATMOSPHERE IS WHEN ANIMALS DIE AND DECOMPOSER EATS OFF IT AND ITS GO BACK TO THE ATMOSPHERE AND ANOTHER WAY IS WHEN ORGANISMS EAT ON PLANTS AND THE LEAVE SOME OF IT AND THE BACTERIA ITS OFF IT AND ITS GO BACK TO THE SOIL.

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nitrogen is lost from the cycle in four ways Denitrification Bacteria change nitrogen in the soil to atmospheric nitrogen , which joins the atmosphere

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Nitrogen enter the atmosphere plants and gas.

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One way nitrogen enters the atmosphere by animals die and plants take in nitorgen.

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Explore weather wonders, Earth, and stuff in the sky. On SkySci for Kids, you can play, watch, read, and do science! This website is open to any young-at-heart learners.

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Two ways nitrogen enters the atmosphere is gas and plants.

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Two ways I think nitrogen enters the atmosphere is soil from the atmosphere and another way I think is the gas that enters the atmosphere.

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Denitrification is the final step in which other bacteria convert the simple nitrogen compounds back into nitrogen gas (N2 ), which is then released back into the atmosphere to begin the cycle again. And when animal poop.

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one way i think that it happens when animals die and decomposers eat off it

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by ammonia and

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Nitrogen Cycle - StudyJams - Closed Captioned

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This video has been captioned for educational purposes - Turn closed-captions on or off by clicking on the CC at the bottom of the screen.