Answer:
All of the above.
Explanation:
Pneumonia is an infection of the air sacs, thus anything that gets into or damages your air sacs can cause pneumonia. And they're all microscopic particles that can easily enter your lungs.
Answer:
All of the above.
Explanation:
Pneumonia is term referring to lung inflammation when the air sacs fill with pus. This symptom is associated to your immune system's response to a pathogen that can be viral, bacterial or fungal. Thus, the answer is all of the above.
