NO.PZ2024010503000023
问题如下：
Which of the following best describes the concept of “natural capital”?选项：
A.Natural resources (such as oil, gas, or timber) that can be sold for a profit in a capitalist economy
B.The stock of natural assets, which include geology, soil, air, water, and all living things
C.The sum total of monetary benefits that are directly dependent on nature
解释：
B is correct. Natural capital refers to the world’s stock of natural assets, from which humans derive the ecosystem services that enable our survival.请问在讲义第几页，涉及那个知识点。a和b怎么解释？
