A market gardener uses a paraffin heater in a greenhouse to improve the yield of plants. Which one of the following is not a good explanation for the effect of the heater?

A market gardener uses a paraffin heater in a greenhouse to improve the yield of plants. Which one of the following is not a good explanation for the effect of the heater?

Correct answer: A. Light is not one of the products of the heater

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