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Cycles Quiz

Terms in this set (24)

What are the 4 biogeochemical cycles?
water cycle
carbon cycle
nitrogen cycle
phosphorous cycle
What is the cycle in which photosynthesis and cellular respiration take place?
carbon cycle
What is the only cycle that does not pass through the atmosphere?
phosphorous cycle
What is the cycle that involves transpiration?
water cycle
What cycle is dependent upon bacteria for nitrogen fixation and denitrification?
nitrogen cycle
What is the cycle in which volcanic activity and burning fossil fuels plays a role?
carbon
What is another name for the water cycle?
hydrologic
What cycle includes an underground reservoir in the form of fossil fuels?
carbon
What is the process in which nitrogen gas from the atmosphere is converted into ammonia by bacteria that live in the soil and on the roots of plants called legumes?
nitrogen fixation
What is the process in which soil bacteria convert nitrogen compounds in the soil back to nitrogen gas which is released into the atmosphere?
denitrification
What is the process in which sunlight is used to change atmospheric carbon into biomolecules used for energy by living things?
photosynthesis
What is the process in which water evaporates from the surface of plant leaves?
transpiration
What is the process in which nutrients in dead organisms are returned to the soil?
decomposition
What is the process in which the break down of sugars in living things returns carbon to the atmosphere as CO₂?
cellular respiration
What is the process in which liquid water changes into gas form?
evaporation
What is the process in which water vapor changes into liquid water?
condensation
What is the process in which condensed water in clouds falls to the Earth's surface?
precipitation
What is the process all cycles have in common that links land and surface water?
deposition
What is the group of organisms that all the cycles have in common which keeps matter cycling between living and nonliving parts of the ecosystem?
decomposers
What are 2 human activities that put CO₂ into the atmosphere?
mining
burning forests
What are 2 non-human activities that put CO₂ into the atmosphere?
volcanic activity
erosion
What is one way that carbon leaves the atmosphere?
photosynthesis
What are 2 ways that water enters the atmosphere?
evaporation
transpiration
What do humans do to return nitrogen to the soil?
synthetic fertilizer manufacturing
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