Answer:
All of the above is correct
Explanation:
Economics - is the social science that describes the factors that determine the production, distribution and consumption of goods and services
The mature stage. I hope this was helpful.
Answer:
respiratory system
Explanation:
The bronchi become smaller the closer they get to the lung tissue and are then considered bronchioles. These passageways then evolve into tiny air sacs called alveoli, which is the site of oxygen and carbon dioxide exchange in the respiratory system.
I think its free nitrogen
