Question

these two people are running. which best describes their energy?
both electromagnetic and sound energy
both nuclear and mechanical energy
both mechanical and chemical energy

Explanation:

When people run, their bodies use chemical energy (from food) which is converted into mechanical energy (for movement). Electromagnetic energy is related to light, etc. Sound energy is from vibrations (not the main energy here). Nuclear energy is from atomic reactions (not relevant here). So the correct combination is mechanical and chemical energy.

Answer:

Both mechanical and chemical energy