Biogeochemical Cycle Review

What process involves the conversion of liquid water into vapor?

• Sublimation
• Condensation
• Evaporation
• Freezing

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NGSS.MS-ESS2-4

What is the primary process by which carbon dioxide is removed from the atmosphere?

• Respiration
• Decomposition
• Combustion
• Photosynthesis

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NGSS.MS-LS1-6

What is nitrogen fixation?

• Nitrogen fixation is the process of converting ammonia into atmospheric nitrogen.
• Nitrogen fixation occurs only in aquatic environments.
• Nitrogen fixation is the conversion of atmospheric nitrogen into ammonia or related compounds, making nitrogen available for plants.
• Nitrogen fixation is the breakdown of nitrogen compounds in soil.

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NGSS.MS-LS2-1

NGSS.MS-LS2-3

What is the primary form of phosphorus found in nature?

• Phosphorus pentoxide (P2O5)
• Elemental phosphorus (P)
• Phosphate (PO4^3-)
• Phosphine (PH3)

How do plants connect the water cycle and the carbon cycle?

• Plants absorb carbon dioxide through their roots.
• Plants release oxygen through their roots during respiration.
• Plants use sunlight to convert water into soil nutrients.
• Plants connect the water cycle and the carbon cycle through transpiration and photosynthesis.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Name the process by which water vapor cools and changes back into liquid water, forming clouds.

• Condensation
• Transpiration
• Precipitation
• Evaporation

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NGSS.MS-ESS2-4

What organism is responsible for converting carbon dioxide into organic compounds during photosynthesis?

• Fungi
• Mammals
• Plants, algae, and some bacteria
• Insects

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NGSS.MS-LS1-6

How do plants acquire phosphorus from the soil?

• Plants acquire phosphorus from the soil by absorbing phosphate ions through their roots.
• Plants rely on fungi to extract phosphorus from the soil.
• Phosphorus is taken in through photosynthesis.
• Plants absorb phosphorus through their leaves.

Explain how the phosphorus cycle interacts with the water cycle.

• The water cycle has no effect on terrestrial ecosystems or phosphorus levels.
• The phosphorus cycle interacts with the water cycle through the transport of phosphorus by rainwater into aquatic ecosystems, promoting growth and linking terrestrial and aquatic environments.
• Phosphorus is only found in the atmosphere and does not interact with water.
• Phosphorus is primarily transported by wind rather than water.

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NGSS.MS-ESS2-4

NGSS.MS-LS2-3

How can changes in one cycle (e.g., carbon) impact another cycle (e.g., nitrogen)?

• Changes in the nitrogen cycle have no effect on carbon levels.
• Carbon and nitrogen cycles operate independently of each other.
• Alterations in the carbon cycle only affect plant growth, not nitrogen availability.
• Changes in the carbon cycle can influence nitrogen availability and cycling in ecosystems.

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NGSS.MS-LS2-3