Question
Which is not an example of direct economic value?
Group of answer choices
release of oxygen by green plants
shelter
medicine
food
Group of answer choices
release of oxygen by green plants
shelter
medicine
food
Answers
GPT-4o mini
The release of oxygen by green plants is not an example of direct economic value. While it is essential for life and has significant indirect benefits, it does not have a direct market value in the way that shelter, medicine, and food do.