Nitrogen cycle
Quiz by Thomas Holland
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10 questions
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- Q1Which process in the nitrogen cycle converts atmospheric nitrogen into forms that can be used by plants?AmmonificationNitrogen fixationNitrificationDenitrification30s
- Q2Which process in the nitrogen cycle converts ammonia into nitrite and then into nitrate?Nitrogen fixationNitrificationAmmonificationDenitrification30s
- Q3Which process in the nitrogen cycle converts organic nitrogen compounds into ammonia?DenitrificationNitrificationNitrogen fixationAmmonification30s
- Q4Which process in the nitrogen cycle converts nitrate back into atmospheric nitrogen?DenitrificationNitrogen fixationNitrificationAmmonification30s
- Q5Which of the following is not a source of nitrogen in the nitrogen cycle?Decaying organismsOxygenNitrogenous fertilizersAtmospheric nitrogen30s
- Q6Which process in the nitrogen cycle converts nitrite into nitrate?NitrificationNitrogen fixationAmmonificationDenitrification30s
- Q7Which process in the nitrogen cycle involves the loss of nitrogen from soil and its release back into the atmosphere?AmmonificationDenitrificationNitrogen fixationNitrification30s
- Q8Which process in the nitrogen cycle involves the conversion of nitrate or nitrite into gaseous nitrogen?AmmonificationNitrificationDenitrificationNitrogen fixation30s
- Q9Which process in the nitrogen cycle involves the conversion of atmospheric nitrogen into ammonia?Nitrogen fixationDenitrificationAmmonificationNitrification30s
- Q10What is the primary source of nitrogen in the nitrogen cycle?Decaying organismsAtmospheric nitrogenNitrogenous fertilizersNitrate30s