The Ozone layer, which mostly lies on the lower portion of the stratosphere.
How Long Did The Vietnam War Last. The Vietnam War is the longest war ever to have taken place in the American history. It lasted for 16 years and it was terrible for the Americans at that time as the Civil Rights campaign was at its peak and so also the Vietnam War and anti war protests.
How long did the English Civil War last? The English civil war lasted from 1642 to 1651. The first lasting from 1642 to 1646 and the second from 1648 to 1649 the final one lasting from 1649 to 1651 when it finally â¦ ended.