assuming the question is 2. you add a prefix to the base unit, it shows it right there. Depending on how much larger or smaller the prefix changes from mega-micro.
Answer:
Lightbublb: electric to radiant
2nd image (can't tell what it is): chemical to electrical
windmill: motion to electric
fan: electric to motion
guitar: electric to sound.
The answer would be step three but not positive this is correct hope this helps
The answer is the 3rd one down I think
D. An animal decaying after it dies seem to be the right answer hopefully.
