The correct answer is A. Hope this helps!
Answer:
What IS THIS im in middle school and i dont even know
Answer:
Explanation:
Why alveolar air differs in composition from atmospheric air
Por qué el aire alveolar difiere en composición del aire atmosférico
The composition of air in the atmosphere and in the alveoli differs. ... In addition, alveolar air contains a greater amount of carbon dioxide and less oxygen than atmospheric air. This is no surprise, as gas exchange removes oxygen from and adds carbon dioxide to alveolar air.
The oceans are constantly moving due to The Moons Gravity