Which of the following is a secondary source of energy? A. electricity B. renewable energy C. petroleum D. coal

B. Electricity

Explanation:

Secondary source is the conversion of primary sources of energy. I'm 100% sure that Petroleum and coal is primary. I'm not sure about Renewable energy.

Hope this kind off give you a sense, but I'll go with Option B.

1. the energy lost to disorder metabolism     -entropy

2. related to or possessing motion potential     -kinetic

3. all of the chemical reactions in an organism required for maintenance of the processes of life entropy     -metabolism

4. possible; ability to go into action or perform work kinetic     -potential

5. the study of energy and its transformations thermodynamics     -thermodynamics

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link: