That depends on whats wrong with your lungs.
Answer:
the change in the total number of people living in a certain area is called population change.
<span>A. P wave is the correct answer</span>
An author's credentials can determine a health source's credibility. None of the other options would apply to credibility. When it comes to health, if you want to make sure that what you are researching or reading is authentic and reliable you need to find out whether the author is a professional health expert or not. You can do this by finding out their credentials.
True,but I think a lot of health disorders are not noticeable
