Which of the Following Is True About Renewable Resources? ​

Multiple Choice

Which of the following is true about renewable resources? ​

A) Land resources include oil, coal, and natural gas that have a fixed stock.
B) ​Land resources include irrigation networks and wastewater treatment plants that utilize water.
C) ​Land resources include air filtration systems in buildings that renew and refresh polluted air from the outside.
D) ​Land resources include forests, range lands, and marine fisheries that naturally regenerate.