Which of the following is NOT an example of ecosystem services?

The production of synthetic pesticides is not considered an ecosystem service because ecosystem services are the benefits that humans derive from natural ecosystems. These services are typically provided by natural processes and living organisms that contribute to environmental health and sustainability.

Pollination of crops by bees, for instance, is a natural process that supports biodiversity and contributes to food production, making it a vital ecosystem service. Similarly, climate regulation by forests involves the natural processes that help maintain stable climates, such as carbon sequestration and the regulation of water cycles. Provision of clean drinking water is another key ecosystem service facilitated by natural systems, like wetlands and watersheds, which filter and purify water.

In contrast, the production of synthetic pesticides is a human-made activity that does not arise from natural ecosystems. Instead, it reflects industrial processes and agricultural practices, which, while useful for managing pests, do not represent a service provided by ecosystems themselves. Therefore, this activity falls outside the definition of ecosystem services.