Answer:
Areas of health you can choose: food/nutrition, physical/excercise, etc
Sorry if this doesnt help much
Explanation:
Conduct research and experiments to improve the productivity and sustainability of field crops and farm animals
I believe it’s carbon dioxide, because you use your respiratory system to breathe in oxygen, and oxygen goes through your circulatory system. And you breathe out CO2.
I think it was two weeks if it’s the same thing I remember. I’m not 100% sure
I don't think so because someone's breasts and lungs aren't the same at all but they are close to each other.