Saturday
February 28, 2015

Homework Help: physiology

Posted by Natash on Tuesday, November 11, 2008 at 8:32pm.

Pulmonary fibrosis may be caused by
a.smoking
b.allergic reactions
c.breathing in coal dust.
d.increased mucus production

I'm having trouble with this because doing research I found it to be smoking and breathing in coal dust. So I'm a bit confused.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Biology - if a person has stooped breathing and is receiving pulmonary ...
health - All of the following are true regarding smoking EXCEPT: - Smoking ...
English - My instructions are to type 200 to 225 words of a short presentation ...
Statistics - Smoking habit Socioeconomic status High Low Smoking 15 40 55 Not ...
Science Help - Using coal for fuel releases pollution into the atmosphere. Why ...
grammar - Which is the best way to combine these two sentences? Breathing all ...
Science Help!!!! - How does using coal to generate electricity affect the ...
Health - My apologies if I make a mistake. I'm new to this, and my Health ...
Social Studies help - 1. Which consumers in Canada and United States use coal? 2...
Research Writing - Can anyone tell me if this sound ok? I have to create an ...

Members