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Humans have invented many ways to use energy from natural resources. Some of these uses of energy add to air pollution, and others do not.

Below are three examples of using energy from natural resources. Select the use of energy that did not add to air pollution.

Hint: Burning a material such as wood, oil, or coal releases chemicals that add to air pollution.

A gas stove created an open flame for cooking by burning natural gas.

A power plant burned coal to produce electricity.

Wind moved a sailboat across the water.

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