Solution-Orchard under the same environmental conditions

You have formulated a hypothesis: “Mangoes contain more vitamin C than oranges.” To test this hypothesis you measure vitamin C levels in 20 oranges and 20 mangoes from trees that were grown in the same orchard under the same environmental conditions (temperature, rain, sunlight). Select all statements that are true about this experiment.

  • The independent variable is temperature
  • The control group in the experiment is the oranges
  • The dependent variable is the vitamin C levels in the mangoes and oranges
  • The type of fruit is a controlled variable

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