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Ecosystems and Global Cycles: Phosphorus, Nitrogen, and Carbon

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Ecosystems and Global Cycles: Phosphorus, Nitrogen, and Carbon

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Questions and Answers

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?

Nitrogen fixation

Mineralization

Denitrification (correct)

Decomposition

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?

All of the above Signup and view all the answers

What is the term for the process by which nitrogen is converted into a usable form for organisms?

Nitrogen fixation Signup and view all the answers

What is the role of the oceans in the global carbon cycle?

Carbon sink Signup and view all the answers

What is the difference between decomposition and mineralization?

Decomposition is the breakdown of organic matter, while mineralization is the conversion of organic matter into inorganic forms Signup and view all the answers

What is the term for the process by which nutrients are released from organic matter and made available to organisms?

Mineralization Signup and view all the answers

What are the terms for the nutrient forms of carbon, nitrogen, and phosphorus that are bound to organic matter?

Organic nutrients Signup and view all the answers

Ecosystems and Global Cycles: Phosphorus, Nitrogen, and Carbon

Choose a study mode

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 mechanism of nitrogen export from ecosystems?

What is the term for the process by which organic nutrients are broken down into inorganic forms?

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 role of the oceans in the global carbon cycle?

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 are the terms for the nutrient forms of carbon, nitrogen, and phosphorus that are bound to organic matter?

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