How does the author's discussion of the woman who quit her job and went back to school contribute to text?
A It provides an example of someone who used her education to prepare for a job
that felt meaningful to her.
B. It emphasizes the financial sacrifice that must be made in order to do
meaningful work.
C. It shows how our society encourages young people to pursue high paying jobs
rather than meaningful ones.
D. It stresses the idea that salaries and college debts don't matter, as long as what
you're doing makes you happy.

chemical energy is stored in the chemical bonds of atoms and molecules. it can only be seen when it is released in a chemical reaction. when chemical energy is released, the substance from which the energy came is often changed into an entirely different substance.

this chemical reaction releases energy in the form of light and heat. chemical energy is the potential energy stored in the arrangement of atoms within molecules. breaking chemical bonds requires energy, while forming new chemical bonds releases energy.

the atp molecule can store energy in the form of a high energy phosphate bond joining the terminal phosphate group to the rest of the molecule. in this form,energy can be stored at one location, then moved from one part of the cell to another, where it can be released to drive other biochemical reactions.