| − | The '''Stratosphere''' is the region of the atmosphere that spans altitudes of 4 to 30 miles,<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref> or more narrowly from 8 to 12 miles in altitude. | + | The '''stratosphere''' is the layer of the Earth's atmosphere that exists above the [[troposphere]]. On average, the bottom of the stratosphere is at a height of about 12 km and the top of the stratosphere (called the ''stratopause'') is around 50 km.<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref> The layer above the stratosphere is the [[mesosphere]]. |