The best choice would be letter C hope this helps
Answer:
sorry about the other person but its b
Explanation:
The proof that the earth is rotating is the happens of night and day also the seasons, eg. winter, summer, autumn.
I’m lost at this question, sorry but I would’ve help !
Based on the law of conservation of energy, we know that we can't create energy, machines can only convert one type of energy into another. So, if we want to improve a machines's ability then we need to reduce it's loss energy (part of energy which is useless). Out of all the options only Option C fits best with it.
In short, Your Answer would be Option C
Hope this helps!