Nitrogen cycle
Quiz by Harshita Gupta
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5 questions
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- Q1What is the term for the process by which ammonia is converted into nitrites and then nitrates?NitrificationAmmonificationNitrogen fixationDenitrification30s
- Q2Which process in the nitrogen cycle changes nitrates back into nitrogen gas?NitrificationAmmonificationDenitrificationNitrogen fixation30s
- Q3What is the primary source of nitrogen in the atmosphere?Oxygen (O2)Nitrogen gas (N2)Ammonia (NH3)Carbon dioxide (CO2)30s
- Q4Which of the following is a step where nitrogen is converted to a form that plants can use?DenitrificationNitrificationNitrogen fixationAmmonification30s
- Q5What process in the nitrogen cycle converts atmospheric nitrogen into a form usable by plants?AmmonificationDenitrificationNitrogen fixationNitrification30s