Which natural occurrence is an example of a long-term environmental change? Lightning sparks a forest fire. An earthquake results in a tsunami. A river floods due to a strong thunderstorm. The peppered moth evolves from a light to a dark color.
Biology · Middle School · Mon Jan 18 2021
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The example of a long-term environmental change among the options provided is "The peppered moth evolves from a light to a dark color." This is an instance of natural selection, where a species changes over many generations in response to changes in its environment. In the case of the peppered moth, the color change was a result of the Industrial Revolution, where pollution darkened the trees where the moths landed, making the darker moths less visible to predators. Over time, this favored the survival and reproduction of moths with darker coloration.