It would be C Hope This Helps My friend :)
I think the correct answer is crust. I am really sorry if I am wrong.
The SunBelt is a region defined by warm climate of the United States. Is not a political example although this region coincide with a very fast growing economy and population for the last decades.
Corect answer is C - a formal example
Answer:
C
Explanation:
Food molecules (carbohydrates, protein, and lipids) are digested into sugar molecules, fatty acids, and amino acids by the action of enzymes. These nutrients are consumed in catabolic reactions to produce the energy required by the cells. ... They generate energy only in the absence of glucose or fat in the body.
The coolest layer is the crust. The crust is on the surface of the earth (where we are) . Inner Core