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- 1. Multiple Choice
What is this a picture of?Nitrogen cyclecarbon cyclewater cycleplant cycle - 2. Multiple ChoiceHow does N2 get into soil?N2 diffuses into the pore spaces between the soil particlesLegumes pull it in.gravity. It's not just a good idea, it's the Law.1st Law of Thermodynamics
- 3. Multiple ChoiceHow does carbon dioxide leave the atmosphere?Through transpirationThrough photosynthesisThrough factory emissionSunlight
- 4. Multiple ChoiceWhich process takes Carbon Dioxide from the air and converts it into a form of carbon used by living things?PrecipitationPhotosynthesisRespirationBioremdiation
- 5. Multiple ChoiceThese gases, such as carbon dioxide, trap heat in the Earth's atmosphere causing global warmingGlobal warming gasesHot House gasesGreen House gasesThermal pollution
- 6. Multiple ChoiceThe elements carbon, oxygen, hydrogen and nitrogen combined make up about 96% of our bodies (carbon is about 18%). Carbon is necessary for life because it is a(n)uncommon element in all living things.element found only in the atmosphereexcellent bonderis found mostly in dead things.
- 7. Multiple ChoiceRespiration is the process by which ____________ is consumed and _______________ is produced.Carbon, OxygenOxygen, Carbon dioxideH20, oxygenCarbon, H2O
- 8. Multiple ChoiceA particular golf course is using large amounts of nitrogen fertilizer. What process could move this nitrogen into a local stream?volatilizationnitrogen fixationrunoffammonification
- 9. Multiple ChoiceGrowing legumes such as alfalfa or soy beans increasesdenitrificationnitrogen fixationammonificationammonium oxidation
- 10. Multiple ChoiceWhich of the following describes the role of nitrogen-fixing bacteria in the nitrogen cycle? Nitrogen-fixing bacteria convertnitrates intro nitrogen gasammonia into proteinsnitrogen gas into ammoniaproteins into nitrates
- 11. Multiple ChoiceOrganisms use nitrogen to formcarbohydrates and lipidsproteins and lipidslipids and nucleic acidsproteins and nucleic acids
- 12. Multiple ChoiceThe nitrogen cycle is a biogeochemical cycle because it moves ?only between living things (biosphere)only in the soil (geosphere)between the 4 different spheresonly in the air (atmosphere)
- 13. Multiple ChoiceWhen nitrogen gas is turned in to a form that plants and animals can use is calledCombustionPhotosynthesisDecompositionNitrogen Fixation
- 14. Multiple ChoiceWhat happens when organisms die and decay?
Their nitrogen returns to the soil as ammonium and air as atmospheric nitrogen
Their nitrogen becomes tapped in clay and is unusablePhotosynthesis moves carbon to the air as CO2
- 15. Multiple ChoiceCarbon dioxide is added to the atmosphere byBurning fossil fuelsCellular respirationDecomposing organic matterAll answers are correct
- 16. Multiple ChoiceDuring photosynthesis, carbon is moved from which reservoir (sink) to which reservoir (sink)?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
- 17. Multiple ChoiceWhich of the following processes converts C6H12O6 to an inorganic molecule CO2translationphotosynthesiscellular respirationexcretion
- 18. Multiple Choice
Denitrifying bacteria convert
NO3 to N2
NH4+ to NO3
N2 to NH4+
none of these
- 19. Multiple ChoiceIf the atmosphere is 78% N2, why can't we just get our nitrogen by breathing?We have no mechanism to break the triple bond of nitrogen between the atoms.Our lungs would be damaged by the N2.We need Oxygen for cellular respiration.The legumes take it up first.
- 20. Multiple ChoiceA chlorophyll molecule, the plant pigment that facilitates photosynthesis, is necessary to all plants. Elements in chlorophyll include carbon andaluminumboronnitrogeniron
- 21. Multiple Choice
Eutrophication is a man made source when there is too much
oxygen in the atmosphere
phosphates in the geopsphere
Nitrates in the hydrosphere
carbon in the atmosphere
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