Which is an example of ecosystem services?

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Ecosystem services are benefits people gain from natural systems that support health, well-being, and everyday life. Clean air to breathe is an ecosystem service because healthy ecosystems help keep air quality good—plants and soils filter pollutants and produce oxygen, directly benefiting human health. The other options describe problems or harms: mudslide risk is a hazard that can threaten lives and property, soil erosion is a degradation process that reduces land productivity, and noise pollution is a negative environmental impact. So, clean air to breathe best represents an ecosystem service.