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Ninth Grade (Grade 9) Biogeochemical Cycles Questions

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Grade 9 Biogeochemical Cycles
The recycling of chemical elements throughout an ecosystem is
  1. energy.
  2. a trophic level.
  3. the phosphorus cycle.
  4. the biogeochemical cycle.
Grade 9 Biogeochemical Cycles
Grade 9 Biogeochemical Cycles
Grade 9 Biogeochemical Cycles
Grade 9 Biogeochemical Cycles
Grade 9 Biogeochemical Cycles
Where are all the elements found?
  1. in ecology
  2. in the biosphere
  3. in biochemical pathways
  4. in the biogeochemical cycles
Grade 9 Biogeochemical Cycles
Which is not one of the four biogeochemical cycles?
  1. carbon
  2. nitrogen
  3. oxygen
  4. phosphorus
Grade 9 Biogeochemical Cycles
Which biogeochemical cycle does the diagram represent?
Carbon Cycle With Text Labels
  1. carbon cycle
  2. water cycle
  3. nitrogen cycle
  4. phosphorus cycle
Grade 9 Biogeochemical Cycles
The two main processes of the oxygen-carbon cycle are
  1. photosynthesis and carbonation.
  2. transpiration and photosynthesis.
  3. cellular respiration and transpiration.
  4. cellular respiration and photosynthesis.
Grade 9 Biogeochemical Cycles
What are two ways in which nitrogen fixation happens?
  1. bacteria and water
  2. water and lightning
  3. bacteria and lightning
  4. bacteria and producers
Grade 9 Biogeochemical Cycles
Grade 9 Biogeochemical Cycles
Which plays an important role in the nitrogen cycle?
  1. bacteria
  2. carbon
  3. photosynthesis
  4. water
Grade 9 Biogeochemical Cycles
Which process cycles carbon through the environment?
  1. transpiration
  2. sedimentation
  3. habitat restoration
  4. cellular respiration
Grade 9 Biogeochemical Cycles
The biogeochemical cycles do NOT include
  1. cycles caused by human activity.
  2. geological processes.
  3. the destruction of nutrients.
  4. chemical and physical processes.
Grade 9 Biogeochemical Cycles
Which biogeochemical cycle is illustrated?
Carbon Cycle With Text Labels
  1. carbon
  2. nitrogen
  3. phosphorus
  4. water
Grade 9 Biogeochemical Cycles
In the water cycle, what is the correct order of processes?
  1. Runoff and Seepage, evaporation, condensation, precipitation, transpiration
  2. Condensation, evaporation, precipitation, runoff and seepage, transpiration
  3. Evaporation, precipitation, condensation, transpiration, runnoff and seepage
  4. Evaporation, condensation, precipitation, transpiration, runoff and seepage
  5. A and B
  6. A and E
  7. None
Grade 9 Biogeochemical Cycles
Bacteria turn atmospheric nitrogen into a form of nitrogen usable by plants through the process of
  1. bacteria fixation.
  2. nitrogen fixation.
  3. denitrogenation.
  4. nitrogenation.
Grade 9 Biogeochemical Cycles
Organisms that eat the bodies of dead organisms are called
  1. carnivores.
  2. detritivores.
  3. heterotrophs.
  4. omnivores.
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