Podcast
Questions and Answers
What is the primary difference between the global cycles of phosphorus and those of nitrogen and carbon?
What is the primary difference between the global cycles of phosphorus and those of nitrogen and carbon?
- Phosphorus has a greater atmospheric component
- Phosphorus has a shorter biogeochemical cycle
- Phosphorus is more readily stored in sedimentary rocks (correct)
- Phosphorus is more susceptible to human impacts
What is the primary mechanism of nitrogen export from ecosystems?
What is the primary mechanism of nitrogen export from ecosystems?
- Nitrogen fixation
- Mineralization
- Denitrification (correct)
- Decomposition
What is the term for the process by which organic nutrients are broken down into inorganic forms?
What is the term for the process by which organic nutrients are broken down into inorganic forms?
- Decomposition
- Nutrient export
- Mineralization (correct)
- Nutrient fixation
What is the primary factor that affects the rates of decomposition in ecosystems?
What is the primary factor that affects the rates of decomposition in ecosystems?
What is the term for the process by which nitrogen is converted into a usable form for organisms?
What is the term for the process by which nitrogen is converted into a usable form for organisms?
What is the role of the oceans in the global carbon cycle?
What is the role of the oceans in the global carbon cycle?
What is the difference between decomposition and mineralization?
What is the difference between decomposition and mineralization?
What is the term for the process by which nutrients are released from organic matter and made available to organisms?
What is the term for the process by which nutrients are released from organic matter and made available to organisms?
What are the terms for the nutrient forms of carbon, nitrogen, and phosphorus that are bound to organic matter?
What are the terms for the nutrient forms of carbon, nitrogen, and phosphorus that are bound to organic matter?
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