Biogeochemical Cycles

What is this a picture of?

• Nitrogen cycle
• carbon cycle
• water cycle
• plant cycle

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How does carbon dioxide leave the atmosphere?

• Through transpiration
• Through photosynthesis
• Through factory emission
• Sunlight

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Respiration is the process by which ____________ is consumed and _______________ is produced.

• Carbon, Oxygen
• Oxygen, Carbon dioxide
• H20, oxygen
• Carbon, H2O

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Growing legumes such as alfalfa or soy beans increases

• denitrification
• nitrogen fixation
• ammonification
• ammonium oxidation

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When nitrogen gas is turned in to a form that plants and animals can use is called 

• Combustion
• Photosynthesis
• Decomposition
• Nitrogen Fixation

Carbon dioxide is added to the atmosphere by

• Burning fossil fuels 
• Cellular respiration
• Decomposing organic matter
• All answers are correct

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Which is NOT a process of the water cycle?

• precipitation
• freezing
• transpiration
• evaporation

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The process of plants losing water through their leaves is called ____.

• condensation
• evaporation
• transpiration
• exhaling

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This is released by the weathering of rocks.

• Carbon
• Oxygen
• Phosphorus
• Nitrogen

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Identify the cycle pictured.

• The Water cycle
• The Carbon cycle
• The Nitrogen cycle
• The Phosphorus cycle.

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