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Type: Multiple-Choice
Category: Biogeochemical Cycles
Level: Grade 6
Author: Shanda_Hanauer
Last Modified: 5 years ago

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Biogeochemical Cycles Question

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Grade 6 Biogeochemical Cycles

Which resource is necessary for aquatic (water) life to survive?
  1. dissolved oxygen
  2. nitrates
  3. alkalinity
  4. point-source pollution
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