Question # 6 What is the purpose of the pleura that surrounds the lungs?
To exchange oxygen for carbon dioxide
To protect against friction during breathing
To create negative pressure in the thoracic cavity
To maintain the temperature within the lungs

To protect against friction during breathing

Explanation: the pleura kind of acts like a lubricant during the expansion and contraction of lungs. :)

men's total number and frequency is 9 drinks per every 5 to 10 minutes. women consider 3 drinks every 5 to 10 miuntes as binge drinking.

explanation:

for respect usually. some people might be little awkward if you meet or some would be different. usually   you dont love people when you meet them depends on the type of person.

hope this