Your nose and your mouth are both a portal of entry into your body. If you cover one and not the other it defeats the purpose because Bacteria can still enter the system. They are both part of your respiratory system.
It means, "how do I get money" according to Google translate, hope this helps :)
Chronic hepatitis is usually caused by contaminated needles due to drug use or sexually transmitted disease. Acute hepatitis is usually caused by the hepatitis A infection due to poor living conditions.
How old, is the tree, and does this represent any kind of graph?
