Final answer:
Ecosystem products that can be used, bought, or sold are known as provisioning services, which include food and raw materials. They are crucial for the economic and material well-being of people, alongside other types of ecosystem services such as supporting, regulating, and cultural services.
Step-by-step explanation:
The products that we get from our ecosystems that we can use, buy, or sell fall under the category of provisioning services. These are tangible outputs of ecosystems such as food, raw materials, fresh water, and medicinal resources. Provisioning services make direct contributions to the economic and material well-being of people by providing resources that we can consume, trade, and utilize in various ways.
Other types of ecosystem services include supporting services, which underpin the provisioning, regulating, and cultural services by maintaining essential ecological processes. Regulating services moderate natural phenomena like climate, floods, and disease. Lastly, cultural services provide recreational, aesthetic, and spiritual benefits that contribute to human well-being. It is important to note that while provisioning services have clear economic value, all types of ecosystem services are indispensable for the sustainability of life on Earth.