However, while UVB rays are responsible for the health benefits of sunshine, tanning salons are most concerned with the UVA rays. The reason for this is that overexposure to UVB rays, which affect the surface layers of skin, quickly causes the skin to burn.
This article is about the war that started in 2003 and ended in 2011. For the initial invasion, see 2003 invasion of Iraq. For the ongoing war in Iraq, see Iraqi Civil War (2014âpresent). For previous wars in Iraq, see Iraq War (disambiguation).
The 'official' War in Europe began in Poland on September 1, 1939. Some historians have argued that the war began much earlier with the Spanish Civil War but September 1 â¦ st, 1939 is the date accepted when the U.K., France, and Commonwealth nations declared war on Germany in response to the Polish invasion.