It is C the mantle becauce the crust is the where we live I think of it as the crust of a sandwhich and the core it the center of the earth
<span>the study of the physical features of the earth and its atmosphere, and of human activity as it affects and is affected by these, including the distribution of populations and resources, land use, and industries.
I hope helped ^-^</span>
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.
