Answer:
The correct answer is "ecosystem services".
Step-by-step explanation:
The correct answer is "ecosystem services".
Ecosystem services refer to the benefits that humans derive from natural ecosystems. They are essential for human well-being and are economically valuable. Examples of ecosystem services include water purification, pollination, climate regulation, and nutrient cycling. These services are essential for life on Earth and provide a wide range of benefits to humans, such as food, clean water, and recreation.
Recreational activities and cultural benefits are also important, but they are not necessarily essential for life on Earth or directly related to the functioning of ecosystems. Gross domestic product (GDP) is a measure of the economic output of a country and is not directly related to ecosystem services, although the two can be indirectly linked if economic activity depends on the provision of ecosystem services.