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Just pick the right option

Just pick the right option-example-1

1 Answer

4 votes

Answer:

A

Step-by-step explanation:

  • As CO₂ (carbon dioxide) depends on the air temperature, it is the dependent variable
  • Therefore, air temperature is the independent variable
  • This is about the relation between carbon dioxide and air temperature, so the soil surface is not a variable to be considered
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