Nitrogen and Carbon Cycle Questions Basic

During photosynthesis, carbon is moved from which reservoir to which reservoir?

• From the atmosphere to the terrestrial biosphere.
• From the troposphere to the terrestrial biosphere.
• From the lithosphere to the terrestrial biosphere.
• From the hydrosphere to the terrestrial biosphere

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How does carbon in a grass plant get into a lion?

• The lion eats an antelope that ate the grass

• Carbon from grass doesn't end up in a lion.

• The lion absorbs the carbon given off by transpiration

• The lion breathes in carbon given out by the plant

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Nitrogen fixing bacteria, lives in nodules on the root of a plant called

• Broccoli
• Legumes
• Beats
• Carrots

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How nitrogen is "fixed" into useable form for plants

• only through action of bacteria
• only through lightning
• through action of bacteria & lightning
• through photosynthesis

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Organisms that break down dead plants & animals and release nitrogen back into atmosphere...

• bacteria
• plants
• animals
• producers

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Organisms that do not decompose can be buried and become what?

• water
• nutrients
• air
• fossil fuels

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Carbon can be found in...

• The atmosphere
• Soil
• Fossil fuels
• All of the above

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What is the role of denitrifying bacteria

• change nitrate back into nitrogen gas

• change nitrogen gas into nitrate

• absorb carbon dioxide in the soil

• release oxygen gas into the atmosphere

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What process is the letter A demonstrating?

• Respiration

• Combustion

• Decomposition

• Photosynthesis

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What process is demonstrated by the letter B

• Photosynthesis

• Combustion

• Respiration

• Decomposition

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