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trap
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rocket
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rocket
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thief
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15
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This form of nitrogen fixation is where most nitrogen โfixingโ takes place.
Biological Fixation
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15
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Industrial fixation is the process of combining N2 with H2 to form______.
Ammonia
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15
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Returning nitrogen to the atmosphere by bacteria living deep in swampy sediments is the process ______.
Denitrification
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15
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Ammonification is part of the ______ process.
decay
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banana
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gift
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shark
Other team loses 20 points!
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banana
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15
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Explain human impact on the nitrogen cycle in a cause/effect statement.
Cause - Use of synthetic (man made) nitrogen fertilizers Effect - Fixes more nitrogen than all natural sources combined
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15
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This process in the nitrogen cycle involves bacteria in the ground combining ammonia with oxygen to form nitrates.
Nitrification
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Animals at the top of the food chain eating plants for their proteins is the process______.
assimilation
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Nitrogen fixing by bacteria living in root nodules of plants is called a _______ relationship.
Symbiotic
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lifesaver
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shark
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fairy
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lifesaver
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What is the largest reservoir that contains about 78% of all N2?
Atmosphere
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15
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List three negative consequences of excess N2 in the nitrogen cycle.
1.Acid Rain 2. Invasion by non-native plants 3. Fish-kill events 4. Algal blooms 5. Changes in species
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15
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_____ occurs when green plants absorb nitrates, and consumers eat the green plants.
Assimilation
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The process where N2 molecules in the air break apart and combine with other atoms to form ammonia.
Nitrogen Fixation
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This type of nitrogen fixation occurs when energy from lightning breaks N2 molecules apart and they combine with oxygen forming N2O.
Atmospheric Fixation
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