Ecology Final Exam D Review

Which is NOT a process of the water cycle?

• precipitation
• freezing
• transpiration
• evaporation

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What is the most abundant gas in the atmosphere?

• hydrogen
• oxygen
• helium
• nitrogen

What happens during the process of nitrogen-fixation?

• Nitrogen compounds turn into free nitrogen
• Free nitrogen turns into nitrogen compounds

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What happens during the process of denitrification?

• Nitrogen compounds turn into free nitrogen
• Free nitrogen turns into nitrogen compounds

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What is this a picture of?

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

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These gases, such as carbon dioxide, trap heat in the Earth's atmosphere causing global warming

• Global warming gases
• Hot House gases
• Green House gases
• Thermal pollution

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Growing legumes such as alfalfa or soy beans increases

• denitrification
• nitrogen fixation
• ammonification
• ammonium oxidation

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What cycle are fossil fuels part of ?

• carbon

• oxygen

• nitrogen

• phosphorus

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What cycle does not has a gas phase?

• carbon

• nitrogen

• phosphorus

• water

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What process is part of the phosphorus cycle?

• transpiration

• nitrification

• combustion

• sedimentation

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