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Biogeochemical Cycles Questions - All Grades

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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 10 Biogeochemical Cycles
Nutrients move through an ecosystem in
  1. energy pyramids.
  2. ecological pyramids.
  3. biogeochemical cycles.
  4. the water cycle.
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 10 Biogeochemical Cycles
Grade 10 Biogeochemical Cycles
An increase in the greenhouse effect causes an increase in
  1. temperature.
  2. oxygen and carbon dioxide.
  3. water cycle.
  4. carbon dioxide.
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 10 Biogeochemical Cycles
Which cycle involves transpiration? Select all that apply.
  1. hydrologic
  2. phosphorus
  3. nitrogen
  4. carbon
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 10 Biogeochemical Cycles
Grade 9 Biogeochemical Cycles
Which process cycles carbon through the environment?
  1. transpiration
  2. sedimentation
  3. habitat restoration
  4. cellular respiration
Grade 8 Biogeochemical Cycles
Which cycle most likely includes sunlight, photosynthesis, and respiration?
  1. water cycle
  2. carbon cycle
  3. oxygen cycle
  4. nitrogen cycle
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.
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