It may be because you have the aspect of collaboration. So your brain is open to more ideas and it makes it easier to have beter ideas.
Your mental feelings, they could affect your want to have physical activity. and your eating habits. if you make yourself sick when you eat, you might feel exhausted, meaning you would lack in physical activity.
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.
