Moderate

Sulphur is returned to the soil by:

Correct answer: C. Consumers and decomposers

  • A. Producers only
  • B. Producers and consumers
  • C. Consumers and decomposers
  • D. All of these

Explanation

Consumers return sulphur through wastes and remains, while decomposers mineralize organic sulphur into inorganic forms in the soil. Producers mainly take up sulphate, so the standard answer is consumers and decomposers.

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