The answer is B
explanation: ..
Answer:
Changes in climate, pollution (to air/water/soil), health issues (mental/physical), harm to animals/nature, etc.
hope this helps!
During inhalation, the lungs expand with air and oxygen diffuses across the lung's surface all of this will enter the blood stream and exhaling isbreathing it all back out
Answer:
lungs
Explanation:
goes from the heart to the lungs to get oxygen
