D because if you are trying to reduce the carbon footprint then using less coal or oil based energy would be best. plus using the solar panels will help because all you have to rely on is the sun and your own power bank for energy. there for leaving less of a carbon footprint.
That is correct- the heart pumps and the smooth muscles of arteries contract (also called constriction)
Answer:
I am living until my life supports my life.
This statement is marked at true.
