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Biogeochemical cycle: Quiz


Question 1: The carbon cycle may be related to research in ecology and ________.
Atmospheric physicsGeophysicsAtmospheric sciencesAtmospheric chemistry

Question 2: In ecology and Earth science, a biogeochemical cycle or nutrient cycle is a pathway by which a chemical element or molecule moves through both biotic (biosphere) and abiotic (lithosphere, atmosphere, and hydrosphere) compartments of ________.

Question 3: In addition to being a part of living organisms, these chemical elements also cycle through abiotic factors of ecosystems such as water (hydrosphere), land (lithosphere), and the air (________).
Ganymede (moon)AtmosphereNeptuneExtraterrestrial atmospheres

Question 4: Ecosystems in the ________, where no sunlight can penetrate, can use sulfur.
Pelagic zoneHydrothermal ventDeep seaBlack smoker

Question 5: ________ near hydrothermal vents can be utilized by organisms such as the giant tube worm.
Nitrous oxideCarbon monoxideHydrogen sulfideNitric oxide

Question 6: The ________ is powered by the light energy of the sun.
Chemical reactionNitrogenChemistryHydrogen

Question 7: The energy of an ecosystem occurs on an open system; the sun constantly gives the planet energy in the form of light while it is eventually used and lost in the form of heat throughout the ________ of a food web.
AutotrophTrophic levelChemotrophChemosynthesis

Question 8: Carbon is used to make carbohydrates, fats, and proteins, the major sources of ________.
Food energyFood microbiologyFood chemistryNutrition

Question 9: The water undergoes ________, condensation, and precipitation, falling back to Earth clean and fresh.
GasTemperatureEvaporationWater vapor


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