1.5 APES Notes - Nitrogen Cycle

Which of the following pathways indicate how nitrogen is added to the largest nitrogen reservoir?

• Nitrifying bacteria and lightning

• Decomposing plant and animal material

• Denitrifying bacteria and volcanic activity

• Nitrates taken up by plant roots

In the nitrogen cycle illustrated above, nitrification occurs in which of the following steps?

• Step 1

• Step 2

• Step 3

• Step 4

Which of the following would best describe X in the diagram above?

• Bacteria play an important role in the conversion of compounds from the atmospheric gas to the form of the compound taken up by plants.

• Phosphorus and nitrogen are both required for plant growth.

• Volcanic eruptions are a major source of non-anthropogenic inputs.

• Processes include weathering and erosion.

Tags

NGSS.MS-ESS2-2

NGSS.MS-LS2-2

NGSS.MS-LS2-3

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