Which of the following is true concerning natural resources?
a. natural resources are not recycled.
b. natural resources are only inorganic.
c. they are part of natural processes.
d. they only incorporate one form of matte

The answer is letter c.  They are part of the natural process.  These are organically grown through natural process and are composed of more than one kind of matter.  They can be recycled and should be preserved to maintain their availability when the need arises.

answer; beware of exaggerated claims without supporting evidence;