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Questions and Answers
What is the process by which ammonia is converted into nitrate by nitrifying bacteria?
What is the process by which ammonia is converted into nitrate by nitrifying bacteria?
Which process returns nitrogen to the atmosphere, completing the nitrogen cycle?
Which process returns nitrogen to the atmosphere, completing the nitrogen cycle?
What is the importance of ammonification in the nitrogen cycle?
What is the importance of ammonification in the nitrogen cycle?
What is the role of nitrogen fixation in the nitrogen cycle?
What is the role of nitrogen fixation in the nitrogen cycle?
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What is the importance of infiltration?
What is the importance of infiltration?
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What is the significance of transpiration in the water cycle?
What is the significance of transpiration in the water cycle?
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What does runoff primarily do in the water cycle?
What does runoff primarily do in the water cycle?
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What is the role of condensation in the formation of clouds?
What is the role of condensation in the formation of clouds?
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Study Notes
Nitrification Process
- Ammonia is converted into nitrate through two main steps performed by nitrifying bacteria:
- Nitrosomonas bacteria oxidize ammonia (NH3) to nitrite (NO2-).
- Nitrobacter bacteria oxidize nitrite to nitrate (NO3-).
Denitrification
- Denitrification returns nitrogen to the atmosphere by converting nitrates and nitrites back to nitrogen gas (N2).
- This process is vital for maintaining the nitrogen balance in ecosystems.
Ammonification
- Ammonification is the process where organic nitrogen from decomposing organic matter is converted into ammonia.
- It is crucial for recycling nitrogen in ecosystems, making it available for uptake by plants when converted further into nitrates.
Nitrogen Fixation
- Nitrogen fixation is the conversion of atmospheric nitrogen (N2) into ammonia (NH3) by certain bacteria (like Rhizobium) or through abiotic processes like lightning.
- This process enhances soil fertility and provides a primary source of nitrogen for plants.
Importance of Infiltration
- Infiltration refers to the process of water penetrating the soil surface.
- It is vital for replenishing groundwater supplies, maintaining soil moisture, and supporting plant growth.
Significance of Transpiration
- Transpiration involves the release of water vapor from plant leaves into the atmosphere.
- It plays a crucial role in regulating climate, supporting nutrient transport in plants, and contributing to the water cycle.
Role of Runoff
- Runoff occurs when water flows over the ground surface and returns to bodies of water.
- It primarily transports nutrients, sediments, and contaminants from land to aquatic ecosystems, impacting water quality.
Role of Condensation
- Condensation is the process where water vapor cools and changes back into liquid form, forming clouds.
- This process is essential for cloud formation and precipitation, influencing weather patterns and climate.
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Description
Test your knowledge of the nitrogen cycle with this quiz! Explore concepts such as nitrogen fixation, nitrification, and their importance in providing essential nutrients for plant growth.
