Question

6.What are the four principal
biological systems that form the
foundation of the global economic
system?
O A. water, air, sand, forests
O B. ocean, forests, deserts, land
O
C. fisheries, grasslands, forests, and
croplands
O
D. fisheries, grasslands, oceans,
land​

Answer 1

Answer:

A

Explanation:

Because bilogical system include all those items