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Nitrogen Cycle
Quiz 3
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Q.1
Gas that makes upof our atmosphere.
Oxygen
Nitrogen
Hydrogen
Carbon Dioxide
Q.2
Plants absorb...
nitrates
nitrogen fixing bacteria
animals
decomposers
Q.3
The process that convert nitrates (NO3-) back to nitrogen gas (Nthere by replenishing N2 in the atmosphere is called
Nitrogen fixation
Deamination
Denitrification
Nitrification
Q.4
The conversion of Ammonia (NHto nitrite (NO2-) and then to nitrates (NO3-) is called
ammonification
Nitrification
Denitrification
Assimilation
Q.5
Ammonification is the process of
Formation of ammonia from nitrogen by nitrogen fixers
Formation of ammonia from amino acids by decomposers
Formation of ammonia from nitrates by nitrogen fixers
Formation of ammonia from nitrates by decomposers and bacteria in the soil
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